Answer:
nervous system.
Explanation:
The nervous system works to send signals throughout the body.
The iris in the human eye contracts and expands, controlling the amount of light that reaches the retina. What types of muscle control this?
Answer:
smooth muscles.
Explanation:
these involve the action of dilation and contraction, dilation increases the size of the pupil and allows for more light to make it to the retina, while contraction is opposite.
Answer:
Smooth and Involuntary
Explanation:
I've taken the test
Two Andalusian chickens are crossed to produce offspring. One parent has black feathers and the other parent has white feathers. In this type of chicken, feather color is a trait that exhibits incomplete dominance.
Which statement is most likely correct about the offspring?
All of the chicks will have both black and white feathers.
Some chicks will have only black feathers and others will have only gray feathers.
All of the chicks will have only black feathers.
All of the chicks will have only gray feathers.
Answer:
The answer is indeed option D
The correct statement of offspring should be All of the chicks will have only gray feathers.
Information regarding offspring;Offspring refers to the human child or animal child, or the children of a family for various years. An example of an offspring should represent the cub of two lions at the zoo. So the all type of chicks should have gray feathers.learn more about the parent here: https://brainly.com/question/24185208
The Finches have different shapes of beaks. Why?
Answer:
Yes, finches have different shaped beaks.
Explanation:
As the finch grows and develops, the bird gets a sense for different and more unique tastes, which causes them to eat different things. As they eat those newer things, the beak develops into the type of beak that certain finch needs for what hes eating. (Example: if the certain finch likes to eat seed and berries, he'd probably have a sharp, long, pointy beak in order to dig up seeds or helps get them off the ground.)
Finches have different shapes of beaks for they adapted to their environment. By definition of the Evolution, established by Charles Darwin, he states that 'animals (in this case Finches,) will either: 1) produce more than is enough in the hopes that some will survive, 2) Adapt to their surroundings, or 3) Create changes (or positive & negative mutations) to try to survive. These examples were found during his trip in Galapagos Island, where he observed that in different parts of the island, bird beaks have transformed. Places with hard-exterior nut shells, generally saw to that the bird beaks were shorter, but stronger and larger. Places softer food, saw the bird beaks being longer, but smaller in size. Essentially, the Finches beaks have different shapes, to adapt their "tool" (their beaks) to their surrounding. A very poor (but what can work) example of how this works in human standard, is like having different tools for one job. While only having one tool may be able to help solve most problems, having different amounts would be great in solving problems with ease.
However, it is important to note that Darwin's Theory has it's own fair share of problems. It is a theory, in the end, not a law. There are times where species are seen to evolve when placed in different situations, but afterwards, when placed back into their natural location, to failed to keep the "adaptation". Traits that are created are not random (as suggested by Darwin's Theory), in which they keep what helps them survive, but they generally go through generations of trials and errors, meaning that every step of a mutation is a trial of adaptation to what is survival. There is no randomness in the world when it comes to survival, only the will to survive.
which organ system includes accessory organ like liver and pancrease
Answer:
digestive system
Explanation:
The accessory digestive organs are the tongue, salivary glands, pancreas, liver, and gallbladder.
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Bio questions about Biotechnology.
If Avery had observed transformation using only the extracts containing degraded DNA, degraded RNA, and degraded protein, but NOT the extract containing degraded polysaccharides, he would have concluded that _______. View Available Hint(s) If Avery had observed transformation using only the extracts containing degraded DNA, degraded RNA, and degraded protein, but NOT the extract containing degraded polysaccharides, he would have concluded that _______. polysaccharides are the genetic material RNA is the genetic material the preparations were contaminated mice with diets rich in polysaccharides are resistant to bacterial infection
Answer:
polysaccharides are the genetic material
Explanation:
It can be concluded that through multiple experiments, such as those of Griffith and Avery, the first one observed the transformation when a destructive bacterial gene is transferred to a harmless one, it will modify it, the second one shows that DNA is not the only responsible for make this change happen, since I experiment with multiple substances, including degraded polysaccharides, finding that the latter were the ones that generated the change.
What phrase describes short-term environmental changes
Answer:
A short-term environmental change is drought, smog, flooding, volcanic eruption, blizzards, and pollution this could happen in anyone of the food webs.
Explanation:
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I found a baby snow leopard behind my house and adopted it.
We can't find much meat in the market because of the virus, I don't know what to feed it.
Pls help.
Answer:
take to local DNR, you can't just adopt a wild animal with out proper licensing.
Explanation:
its against the law
Answer: hi thank you so much for this question, the answer is simple
, snow lepords eat mice, try giving it water maybe try a milk baby bottle put honey on the sucking part. y
Explanation:
An operon is:A) a gene coding for a repressor protein.B) a region of DNA consisting of the promoter, operator, and coding sequence for more than one protein.C) a region of DNA consisting of the operator and coding sequence for structural proteins.D) a region of DNA consisting of the promoter and operator sequences needed to regulate one or more structural genes. a single molecule of RNA coding for more than one protein.
Answer: Option D.
A region of DNA consisting of the promoter and operator sequences needed to regulate one or more structural genes.
Explanation:
An operon is a part of the the DNA that is found in bacteria or viruses which function in transcription and genetic regulation. Operon is under control of an operator, consist of promoter, regulator and structural genes. Operon is normally under the control of a single operator in which genes coding for protein are clustered along the DNA.
Vines in tropical rain forests must grow toward large trees before being able to grow toward the sun. To reach a large tree, the most useful kind of growth movement for a tropical vine presumably would be _____. Vines in tropical rain forests must grow toward large trees before being able to grow toward the sun. To reach a large tree, the most useful kind of growth movement for a tropical vine presumably would be _____. the opposite of circadian rhythms negative phototropism negative thigmotropism negative gravitropism
Answer:
The correct answer is the opposite of the positive phototropism.
Explanation:
The vines in the tropical rain forests in the given case would primarily exhibit the growth pattern opposite in the direction of positive phototropism. The response of the plant towards the source of light is termed as the positive phototropism. On the other hand, the phenomenon that results in the growth of the plant in the reverse direction is termed as negative phototropism.
Thus, in the given case, in order to reach a large tree, the vines in the tropical rain forests would primarily show a growth movement, which would be the opposite of positive phototropism.
hypothesis if plants are grown in soil containing worms then........
Because.......
Answer:
If plants are grown in soil containing worms, then the plants will grow faster
Explanation:
because worms dig tunnels in the ground. These tunnels create a path for air which is beneficial for the plant. Also, worms create nutrient rich fertilizer for the plant
Worms are considered the good friends of the farmers because worms increase the fertility of the soil due to which there is an increase in crop production. Hence plants grown in soil containing worms will have higher faster growth.
Why worms are good for the soil?As discussed above worms are friends of the farmers because they are decomposers, worms convert the dead and decaying material into humus which is rich in organic and inorganic nutrients.
These organic and inorganic nutrients are absorbed by the plants through the roots by the soil which are essential for good growth and proper development.
High growth in the plants results in a high yield of crops and foods, vegetables, etc.
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You are hired as a consultant for a new venture: pet-squirrel breeding! Because customers prefer bushy tails on their pet squirrels, you are asked to help produce bushy-tailed squirrels from a local population as quickly and efficiently as possible. Of course, you know that bushy tails are a quantitative genetic trait in squirrels. What information would you need to obtain in order to accomplish this task
Answer:
I would primarily need to know about the narrow-sense heritability of the trait for the local squirrel population. Where the gene for bushy tails lie, whether it is a dominant trait or a recessive one. This mainly has to do with what fraction of variance in phenotype can be as a result of additive effects of gene. Once this information is known, I could breed pet-squirrels with bushy tails or even any other desirable trait requested for.
Explanation:
Hope that answers the question, have a great day!
To achieve the goal of breeding bushy-tailed squirrels, reliable data on desired traits, genetic variation, and recombination techniques are crucial.
Parents Selection: To achieve the goal of breeding bushy-tailed squirrels, you would need to ensure that the desired trait for bushy tails is present in the selected parent squirrels. Reliable data on the traits, such as tail bushiness, must be collected for effective breeding.
Genetic Variation: Successful selective breeding relies on the presence of different versions of the bushy tail trait within the local squirrel population. Phenotypic variation attributed to genetic factors is crucial for the breeding process.
Recombination and Trait Expressions: Understanding how genetic recombination can lead to the expression of the bushy tail trait is essential. By selectively breeding squirrels with the desired trait, over generations, you can achieve a population with distinct bushy tails.
An asynchronous culture is given 3H-thymidine for a period of time, usually about 30 minutes. During the labeling period, 42% of the cells incorporate radiolabel. At numerous times after the exposure, samples of the cells were collected and autoradiograms were prepared. The first radiolabeled mitotic figures appeared in the sample that was collected six hours after the 3H-thymidine radiolabel was first presented to the cells. The autoradiograms were stored for 75 hours before they were developed. How long is the G2 phase
Answer:
How long is the G2 phase = 6hours
Explanation:
Cell cycle undergoes various stages during mitotic cell division.
Normally cells are arrested in the resting phase G0 but as the cell division starts it undergoes G1 the growth phase then it undergoes S phase called the Synthesis phase in which the DNA synthesis occurs. Then it undergoes G2 Phase and is the shortest phase while G1 is the longest phase of the cycle. G2 normally lasts for 3-4 hours so here it may take 2.775 hours as due to presence of Thymidine the synthesis of DNA occur at high level so it contains higher levels of cellular DNA than in the G1 . so it will take 6hours G2 phase to occur.
The G2 phase will take 6 hours.
We can arrive at this answer because:
Detection of the 3H thymidine radiolabel will follow the duration of the G2 phase.This is because this phase refers to the interval between DNA duplication and the beginning of cell division.In this phase, it is possible to detect all molecules and elements that will be necessary for cell division.Thus, if the 3H thymidine radiolabel can be visualized after 6 hours and it will be a participating element in cell division, we can agree that the G2 phase will last 6 hours.
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n the fruit fly, Drosophila melanogaster, a spineless (no wing bristles) female fly is mated to a male that is claret (dark eyes) and hairless (no thoracic bristles). Phenotypically wild-type F1 female progeny were mated to fully homozygous (mutant) males, and the following progeny (1000 total) were observed. Phenotypes Number Observed spineless 441 wild 27 claret, spineless 31 claret 1 claret, hairless 430 hairless, claret, spineless 32 hairless 38 hairless, spineless 0 Which gene is in the middle?
Answer:
Gene h is in the middle.
Explanation:
Phenotype: represented by
spineless: s
hairless: h
claret: c
wild type: +
s + + (parental) + c + (DxO double crossover)
+ c h s + h
s + s +
+ c + c
+ h h + so the one that differs in position is in the middle, and hence, the answer is gene h (hairless)
Hope that answers the question, have a great day!
Nina is learning about plants in school. Her teacher gives her group a stack of cards that list things that plants might need to make their own food. Written on the cards are the words “water,” “soil,” “sunlight,” and “air.” One card does not belong.
Which of the cards should Nina’s group take out of the pile?
A) air
B) soil
C) sunlight
D) water
Her teacher gives her group a stack of cards that list things that plants might need to make their own food. The card that does not need to be there is air. Thus option A is correct.
What is the composition of air ?Earth's atmosphere is composed up of only five gases like nitrogen, oxygen, water vapor, argon, and carbon dioxide, the primary component is nitrogen gas.
Nitrogen, oxygen, water vapor, argon, and carbon dioxide these gases account for about 99% of the air, Trace gases such as neon, methane, helium, krypton, hydrogen, xenon, ozone, and many other elements and compounds.
plants are needed carbon dioxide and animals need to breath the oxygen present in air and the available air is a natural element of nature that support on earth.
Air is very useful in animal ,plants other sources, uses air in the are sustain and growth, maintaining temperature, energy supplier combustion
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The card that Nina's group should remove from the pile is the one that says "air." Plants use water, soil, and sunlight to make their own food through photosynthesis, while air (specifically, carbon dioxide) is also a necessary component for this process.
Explanation:The card that Nina's group should take out of the pile is the one that says "air." While plants do require air to survive, it is not something they use to make their own food. Instead, plants use water, soil, and sunlight to make their own food through a process called photosynthesis.
Carbon dioxide from the air is also utilized in this process. Therefore, the other three cards belong in the stack as they represent the essential components for plants to make their own food.
1 Pterodactyl (reptile)
2. Bat (mammal)
3. Albatross (bird)
Why are the wings
considered analogous
structures while bones in
these forelimbs are
considered homologous
structures?
Answer:
Analogous structures are structures which serve similar function in different organisms and evolved independently in two living organisms while homologous structures are the structures which are similar in related orgnanism due to inheritance.
The wings of Pterodactyl, bats and birds are conisdered as analogous structure. they are similar in structure and same in function and evolved independently in the two groups of animals.
Bones in forelimbs of pterodactyl, bats and birds are considered homologous structures as they inherited the pattern from a common ancestor and have different functions.
Throughout the reflection, make sure you have a copy of the Student Guide and your data tables Complete the
paragraph by using the drop down menus
in this lab, you determined the relative ages of rock layers using the principles of relative dating The
says that a rock layer found closer to Earth's surface is
Ma rock layer that is deeper in Earth's surface. The
states that intrusions are
the rock layer they cut across. You also determined the absolute ages
of rock layers using al
The data you gathered helped you identify an unknown fossil
Answer: 1st one: Law of superposition
2nd one : younger than
3rd one : principal of cross - cutting relationships
4th one : younger than
5th one : mass spectrometer
Explanation:
i just did the quiz
Answer:Answer: 1st one: Law of superposition
2nd one : younger than
3rd one : principal of cross - cutting relationships
4th one : younger than
5th one : mass spectrometer
Explanation:
What does the phrase “extreme environments” suggest as it is used in the sentence below?
Organisms that use chemosynthesis live in extreme environments, where the toxic chemicals needed for oxidation are found.
(A) that the organisms live in places where toxins are scarce
(B) that the organisms live off the high heat of the sun
(C) that the organisms live far away and by themselves
(D) that the organisms live in harsh conditions
plz reply!!!
Answer:
Its D
Explanation:
The phrase “extreme environments” refers to harsh conditions that are difficult for most life forms to endure, which is where extremophiles live. The correct answer is that the organisms live in harsh conditions.
Explanation:The phrase “extreme environments” suggests that the organisms live in harsh conditions that are challenging for most life forms to survive. Such places are known for their extreme temperatures, pressures, chemical makeup, or radiation levels, and organisms that live there, known as extremophiles, have adapted to thrive in these environments. Therefore, the correct answer to the given question is (D) that the organisms live in harsh conditions.
Which is a need?
A.shelter
B.gum
C.chocolate bar
D.toys
Answer:
A-Shelter, the others are for enjoyment while shelter takes care of your physical state
Trehalose is a disaccharide that is associated with plants and animals that are relatively resistant to drying out. For example, Artemia spp. (brine shrimp, or \"sea monkeys\") utilize trehalose as an energy source and can withstand periods of heat and dehydration. Trehalose may make up as much as 15% of an encysted embryo\'s weight, and \"sea monkey\" eggs can be shipped dry in the mail with no harm to the embryo. Answer parts (a) and (b). a) Identify trehalose, which is formed by an
Find the answer in the attachment.
Note: The complete question is also attached.
What form does carbon take in the atmosphere
Answer:
Carbon Dioxide
In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals.
Explanation:
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Final answer:
Carbon appears in the atmosphere mainly as carbon dioxide (CO2) and methane (CH4), both of which are greenhouse gases and play a critical role in Earth's climate system.
Explanation:
In the atmosphere, carbon primarily exists as carbon dioxide (CO2) and methane (CH4). Carbon dioxide gets released into the atmosphere through various processes, including respiration, decomposition of organic materials, volcanic eruptions, and the burning of fossil fuels and plant matter. Methane, although present in much smaller concentrations, is also significant as it is released mainly through microbial activity in shallow subsurface environments and from deep subsurface organic matter reactions. Both of these gases are 'greenhouse' gases, absorbing thermal radiation and contributing to the greenhouse effect, which is essential for life but is also impacted by human activity.
Stoping
Blocks of rocks falling into
magma
Emplacing
Small intrusive bodies
Laccoliths
Magma injected into older
rock
Stocks
Large, dome-shaped
Intrusive bodies
Answer:
Stoping is blocks of rocks falling into magma.
Explanation:
Stoping is a process whereby surronding bedrocks falls and are broken up and passes through the upward movement of magma.
Answer:
BELOW :)
Explanation:
STOPING is BLOCKS OF ROCKS falling into MAGMA.
STOCKS is SMALL INTRUSIVE BODIES.
EMPLACING is MAGMA INJECTED INTO OLDER ROCK.
LACCOLITHS is LARGE, DOME-SHAPED INTRUSIVE BODIES.
Hopefully, this helps :)
Louisa is playing pool with a friend from school. She strikes the cue ball and watches as it travels across the table and impacts another pool ball. What happens to the energy as one pool ball strikes another?
Some energy is transferred to the other ball, and some energy is released as sound.
Some energy is transferred to the felt on the table, and some energy changes to thermal energy.
Some energy is transferred to the other ball, and some energy is destroyed.
Some energy increases as the electrons in one ball collide with the electrons in the other ball.
Answer:
Option A
Explanation:
As we all know, energy can never be created . Also it can never be destroyed. However, it can only be changed from one form to the other. In this case, when a pool ball is striked by a stick, the kinetic energy of stick is transferred to the ball along with release of sound. Sound is just another form of energy.
Now, when this ball strikes other balls, the same process is repeated i.e the ball strikes another ball and passes on its kinetic energy along with release of sound energy. Every time sound is released, the amount of kinetic energy transferring from one body to other reduces.
Option A is correct
How far away from the Sun is the asteroid in astronomical units?
The distance of an asteroid from the Sun can be measured in Astronomical Units (AU), which is the average distance between the Earth and the Sun. To find the exact distance, we would need to know the specifics of the asteroid's orbit.
Explanation:The distance of an asteroid from the Sun can vary, depending on its current position within its orbit. The Astronomical Unit (AU) is used as a standard measure of distance in Astronomy. One AU is approximately equal to the average distance between Earth and the Sun, about 93 million miles or 150 million kilometres. To determine how far an asteroid is from the Sun in AU, we would need to know the specifics of its orbit. For instance, if we know the asteroid's semi-major axis (average distance from the Sun), we can say the distance in AU.
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Final answer:
To find the average distance of an asteroid from the Sun in astronomical units, given its orbital period of 8 years, one can apply Kepler's Third Law. This gives us an average distance of approximately 4 AU.
Explanation:
The student asked, "What is the average distance from the Sun (in astronomical units) of an asteroid with an orbital period of 8 years?" To determine this, we can use Kepler's Third Law of Planetary Motion, which states that the square of the orbital period (P) of a planet is directly proportional to the cube of the semi-major axis of its orbit (a), where P is in years and a is in astronomical units (AU). For Earth, P is 1 year and the distance a is 1 AU by definition.
If the asteroid's orbital period is 8 years (P = 8), then we can calculate the semi-major axis (a) of the asteroid's orbit as follows:
P² = a³
8² = a³
64 = a³
a = ∛64
a ≈ 4 AU
Thus, the average distance of the asteroid from the Sun is about 4 AU.
54:04
Which statement best explains why water is essential for all living things?
Water makes up 65% of human beings.
Water is an essential component of blood
Water covers 75% of Earth's surface.
Water is necessary for cellular functions
Answer:
D. Water is necessary for cellular functions.
Explanation:
The question was 'Which statement best explains why water is essential for all living things', not humans or the Earth specifically.
Answer: the answer is .D , Water is necessary for cellular functions.
Explanation:
on edg
Which are characteristics of all bacteria? Check all that apply.
They lack a nucleus.
They have a nucleus.
They eat other organisms.
They make their own food.
They are eukaryotes.
They are prokaryotes.
Answer:
1 and 6
Explanation:
The characteristic that are present in bacteria is lack a nucleus, are prokaryotes. The correct options are a and f.
What are prokaryotes?Prokaryotes are the basic creatures without a nucleus or other organelles in their cells. Bacteria and archaea, two distinct groupings of prokaryotes with allegedly independent evolutionary histories, are separated into.
The majority of prokaryotes are tiny, single-celled creatures with a straightforward structure.
Since prokaryotic cells lack a membrane-bound nucleus, eukaryotic cells are the main difference between these two types of creatures. Eukaryotes store their genetic material in their nuclei.
Bacteria are common, largely free-living organisms that frequently only have one biological cell. They make up a significant portion of the prokaryotic microbial kingdom. Prokaryotes, which lack a nucleus, are a hallmark of bacteria.
Thus, a and f are the correct options.
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4) The biodiversity in an area is
A) generally unimportant to biogeography
B) the number of different kinds of organisms present
C) a measure of how inbred are the genes of any species
D) usually unrelated to the overall health of the natural environmen
Answer:
B) the number of different kinds of organisms present
The biodiversity in an area is the variety of life, including the number of organism species and their relative abundance. Ecologists measure biodiversity and recognize its importance for human survival and ecosystem health. Biodiversity also encompasses genetic and ecosystem diversity.
The biodiversity in an area refers to the number of different kinds of organisms present (option B). More specifically, it is the variety of life and its processes, including the variety of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur. Biodiversity is crucial as it affects the survival and well-being of human populations. It impacts our health, our ability to produce food through agriculture, and maintain functional ecosystems.
Traditionally, ecologists measure biodiversity by considering the number of species and their relative abundance in a particular area. This area could be as small as a local habitat or as large as the entire biosphere. Species richness is a term describing the number of species in a habitat and can vary globally, often higher near the equator and lower near the poles. Factors such as island size and distance from the mainland, as per island biogeography studies, also influence species richness.
Biologists are expanding measures of biodiversity to include genetic diversity and ecosystem diversity, which help in focusing conservation efforts to preserve vital elements of biodiversity. Genetic diversity is the variety of genes within a population, and it is essential for a species' adaptation to environmental changes and new diseases. Ecosystem diversity refers to the variety of ecosystems in an area, with the loss of an ecosystem leading to the loss of species interactions and biological productivity.
B. Eggs are known to contain cholesterol, which is a lipid. Did your experiment results indicate a presence of lipids in the albumin solution? Think about this result and where cholesterol is present in eggs to explain how your results support or reject cholesterol in eggs. How could you test this? Explain the experiment that you would perform to test this.
Answer:
According to the result recorded, there was no cholesterol in the albumin solution. This is probably because the cholesterol is in the egg yolk and not the egg white. In order to get a positive response on the presence of cholesterol in eggs, an egg yolk albumin stock needs to be prepared. So using the same procedure as before and only replacing the egg yolk for the egg white, prepare a 0.5 mL of egg yolk with 4.5 mL distilled water mixture in a test tube. Follow the steps given in the lab manual to check for presence of lipids in this albumin stock. Take a filter paper and add one drop of Sudan III solution onto it, let it dry and then place a drop of the stock prepared and analyze if the color transfer happens.
Hope that answers the question, have a great day!
Cholesterol, a lipid, is found in eggs, specifically the yolk. A simple lipid test, the emulsion test, can be used to detect the presence of lipids like cholesterol in a solution. The presence of lipids in your egg albumin solution would thus support the claim that eggs contain cholesterol.
Explanation:Eggs, particularly the yolk, do contain cholesterol, a lipid component. Cholesterol, the most common steroid, is also a component of the cellular plasma membrane located within the phospholipid bilayer. In your experiment, if you found a presence of lipids in the albumin solution, this could potentially indicate the presence of cholesterol, as cholesterol is a type of lipid.
This can be tested using a simple lipid test experiment. Use an emulsion test where you add ethanol to a sample of your solution, shake it well, then pour it into water. If lipids like cholesterol are present, a milky-white emulsion will form.
The presence of lipid then supports the fact that eggs contain lipid substances such as cholesterol, which is necessary for the proper functioning of the body, despite its often negative perception. This is an essential cell component being an integral part of plasma membranes and important for cell-to-cell communication and transport of materials.
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any organism that has a circulatory system is a. colonial organism, b. single-celled organism, c. parasite, d. multicellular organism
Answer: D. Multicellular organism
Explanation:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food
to cells.
Hope this helps!
An organism that has a circulatory system is a multicellular organism. The circulatory system is essential for multicellular organisms as it aids in nutrient transport, oxygen delivery, and waste removal throughout the body. Contrastingly, single-celled organisms do not have a circulatory system as they directly exchange substances with their environment.
Explanation:An organism that has a circulatory system is a multicellular organism (option d). The circulatory system is crucial for multicellular organisms as it aids in the transportation of nutrients, oxygen, and waste products throughout the body. Single-celled organisms do not require a circulatory system as they directly obtain nutrients from and excrete waste into their environment. Complex multicellular organisms like humans, on the other hand, need a circulatory system to transport nutrients to and waste from trillions of cells.
Let's take a simple example, animals consisting of a single cell layer such as the sponge or only a few cell layers such as the jellyfish do not have a circulatory system. Instead, gases, nutrients, and wastes are exchanged by the process called diffusion.
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During the year the beetles reached carrying capacity, a flood in the region decreased the population to about 77 beetles per hectare. What is the total estimated population of the beetles after this disaster? What percentage of the carrying capacity is the population now?
Answer:
After the flood the total number of beetles = number of beetles per hectare × 115 hectares = 8,855 beetles.
The carrying capacity is 14,600 beetles.
The current percentage of the carrying capacity is 60.6%.
Explanation:
thats the sample answer on Edmentum
Carrying capacity is the number of organisms supported and held by the region without degradation. The total estimated population of the beetles after the flood will be 14,600 beetles and the percentage will be 60.6%.
What is carrying capacity?Carrying capacity is the maximum population reached and sustained by an organism by unfavorable and limited resources like water, food, and habitat.
It is an important factor as the increase in the maximum size of the population can harm and degrade the environment and is determined by the water, food, and space availability.
After the flood, the total number of beetles = number of beetles per hectare (77) × 115 hectares = 8,855 beetles
The carrying capacity will be, 14,600 beetles and the percentage will be,
(8855 ÷ 14600) × 100 = 60.65 %
Therefore, 60.65 % is the carrying capacity percentage of the beetles after the flood.
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Your question is incomplete, but most probably your full question was, that A scientist is studying the population of a particular species of beetle in an ecosystem. The beetles currently have an estimated population of 11,500 individuals on a wildlife preserve of 115 hectares. (One hectare is equal to 2.47 acres of land.)
During the year the beetles reached carrying capacity, a flood in the region decreased the population to about 77 beetles per hectare. What is the total estimated population of the beetles after this disaster? What percentage of the carrying capacity is the population now?