- Energy
"Matter is recycled, but energy is not. In an ecosystem, matter is represented by the presence of biogeochemical elements such as Hydrogen, Carbon, Nitrogen, Oxygen, Phosphorus and Sulfur."
In an ecosystem which of these is not recycled energy. Thus, option "B" is correct.
What is Biodiversity?Biodiversity has three levels - ecosystem, species and genetic diversity. Therefore, Biodiversity can be defined as the variability among living organisms involving terrestrial, marine, and other aquatic ecosystems, genes and alleles in a species and their ecological complexes such as diversity within species, and between species of the ecosystems.
Thus, option "B" is correct.
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Sexual reproduction relies on two sex cells uniting in fertilization to form a single cell know as a(n) _______.
Sexual reproduction involves the fusion of haploid gametes through fertilization to create a diploid zygote.
Sexual reproduction relies on the union of two specialized cells, known as gametes, through a process called fertilization to form a single, unique cell known as a zygote. Gametes are haploid cells that contain one set of chromosomes each, while a zygote is a diploid cell with two sets of chromosomes.
What would be the complementary sequence of nucleotides for the following DNA sequence: GCTAATTGCATCCGA?
Answer:
It would be CGAUUAACGUAGGCU
Which should be true about a research topic? A. It should have unlimited scope. B. It should be of interest to you. C. It should have been researched by at least two others. D. It should have a large number of keywords.
A research topic should be of interest to you (option B). It should engage your passion, have a manageable scope, be nuanced and debatable, and allow for various perspectives.
Explanation:When choosing a research topic, it should be of interest to you - option B is correct. A good research topic is one that engages your curiosity and passion, which can make the researching and writing process more enjoyable and fruitful. A topic with unlimited scope would be too broad to handle in a single paper and creating a research question with too many specific keywords could limit the exploration of the topic. Moreover, while it can be beneficial if the topic has been previously researched, it is not a requirement that it must be researched by at least two others; what matters is that you can find sufficient material and evidence to support your research. Lastly, the topic should be nuanced and debatable, allowing for various perspectives and insights rather than a simple yes-or-no question.
Mitochondria are organelles that
A. are necessary for the process of diffusion to take place
B. are found in the nucleus of some cells
C. initiate cell division in living cells
D. contain respiratory enzymes
Answer:
D-contain respiratory enzymes
Explanation:
the inner membrane of the mitochondrion folds into cristae that increases the surface area of attachment of respiratory enzymes.
Mitochondria contain respiratory enzymes that are used in the production of ATP, the energy source of the cell, via the process of cellular respiration. They are like power plants for cells but do not initiate cell division, are not found in the nucleus, and are not necessary for diffusion. Hence the correct option is D.
Mitochondria are organelles known as the "power plants" of the cell because of their role in cellular respiration. Out of the options provided, the correct answer to the question of what mitochondria are necessary for is contain respiratory enzymes Mitochondria contain enzymes that are crucial for the process of converting energy from organic compounds into ATP (adenosine triphosphate), which is the energy source for the cell. This process, known as cellular respiration, involves a series of reactions where nutrients are broken down and their energy is captured in the form of ATP. The double-membraned structure of the mitochondria houses the respiratory enzymes and other molecules needed for ATP production. Mitochondria are not found in the nucleus of cells, they do not initiate cell division, and they are not necessary for the process of diffusion to occur.
The characteristics of two layers of Earth’s crust are listed.
Layer A: Hard, rigid outermost layer of Earth
Layer B: "Plastic" layer containing the mesosphere
Which statement is true?
Layer A is the crust and Layer B is the mantle.
Layer A is the mantle and Layer B is the crust.
Layer A is the outer core and Layer B is the inner core.
Layer A is the inner core and Layer B is the outer core.
Answer:
Layer A is the crust and Layer B is the mantle.
Answer:
Layer A is the crust and Layer B is the mantle.
Explanation:
The crust is the hardest and hardest layer on earth. It is an external and solid layer, consisting mainly of rocks, soils and a variety of minerals. It can be classified as terrestrial crust, or oceanic crust (when it is below the ocean).
The Mantle, in turn, is located just below the crust and has a more plastic consistency, being a less rigid layer than the crust. The mantle extends to almost half the earth's radius and its apparent "plasticity" is the result of magma.
What codes for proteins?
a. DNA
b. RNA
c. Polypeptides
d. amino acids
15 points please help soon <3
I think it's A. DNA
Hope this helps
:>
two-piece plants with yellow peas are crossed most of their offspring have yellow piece but about 25% of The Offspring have green peas for pea color yellow is the dominant trait and green is the receptive trade what does this tell you about the two parent plants
The crossing of two heterozygous (Yy) pea plants leading to roughly 75% of offspring with yellow peas and 25% with green peas reflects a Mendelian 3:1 inheritance pattern for a dominant (yellow) and a recessive (green) trait.
When two pea plants with yellow peas are crossed, and approximately 25% of the offspring have green peas, it indicates that the parent plants are both heterozygous for the seed color trait (Yy). Because the yellow trait is dominant (Y) and the green trait is recessive (y), each parent must contribute one allele for the observed 3:1 ratio in the F2 offspring. Using Punnett square analysis, we can predict the genotypes of the offspring as follows:
YY (homozygous dominant) - which would result in yellow peasYy (heterozygous) - which would also result in yellow peas, andyy (homozygous recessive) - which would result in green peas.Since yellow is dominant to green, the presence of a single Y allele is enough to produce yellow peas. The observed ratio of approximately 3 yellow to 1 green pea suggests a typical Mendelian inheritance pattern, where each parent provides one allele for the trait. This 3:1 ratio is a classic example from Gregor Mendel's genetic studies.
All cells have some universal features. Which of these is a universal feature found in every single cell on earth?
Every cell on Earth contains genetic material and ribosomes, and uses a near-universal genetic code, indicating a common evolutionary origin from the last universal common ancestor (LUCA).
All cells on Earth, regardless of being part of unicellular or multicellular organisms, share some universal features. One such universal feature found in every single cell is the presence of genetic material (such as DNA), which is necessary for storing and transmitting information. Additionally, every cell contains ribosomes for protein synthesis and uses a near-universal genetic code, reflecting a common evolutionary history rooted in a last universal common ancestor (LUCA).
This fundamental set of characteristics allows cells to perform essential functions such as growth, reproduction, and responding to environmental changes. The fact that such features are present in all forms of life, from bacteria to human beings, further supports the concept that all known organisms are descendants of a single ancestral cell that lived approximately 4 billion years ago.
Which of the following is NOT a characteristic of vacuole?
A. Filled with fluid
B. Does not contain a nuclei
C. Maintains the shape of the cell
D. Takes up most of the cell
Answer:
B. Does not cointain a nucleus
B hope this helps my dude
What's responsible for preventing the gas giants from collapsing into a star?
Gas giants do not have enough mass that holds much gravitation force to ensure collapsing into a star. The gravitation pull is not strong enough to cause the fusion of hydrogen atoms. These gas giants, such as Jupiter, therefore, do not become stars.
Answer:
They spin very quickly on their axes.
Explanation:
The gas giants spin very quickly, creating a strong centrifugal force. This strong centrifugal force prevents them from collapsing under gravity.
Scientists believe that _______ of species that once existed on Earth are now extinct.
Scientist believe that 1/3 of species that once existed on Earth are now extinct
Answer: The answer is 1/3
Explanation: There is no explanation it is a simple fact.
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1. Which planet shows evidence of water erosion?
Mars
Venus
Jupiter
Mercury
2. Which planet has a cratered surface similar to Earth’s moon?
Mars
Venus
Mercury
Saturn
3. Which planet has a dense carbon dioxide atmosphere and high surface temperatures?
Venus
Earth
Mars
Mercury
Answer:
1) Mars
2) Mercury
3) Venus
Answer:
Mars: The evidence of water erosion is why many missions target Mars for research as a probable planet capable of sustaining life as we know on Earth.Mercury: This planet is similar to Earth´s moon because they almost had none atmosphere which prevents the surface of being eroded.Venus: Its average temperature is 460 degrees Celsius, 420 degrees hotter than the Earth. And its atmosphere consists of 96% of carbon dioxide and 4% Nitrogen.I hope these answers help you.
For each animal, indicate what type of movement each limb is responsible for.
Answer:
Animal Primary Functions
Human Using tools, picking up and holding objects
Whale swimming
Cat running, walking, jumping
Bat flying, flapping wings
Bird walking, hopping,
Crocodile swimming, walking/crawling
The thoracic and pelvic limbs represent the main portion of the skeleton and are responsible for the locomotion of animals. The main difference between the thoracic and pelvic limbs is in the function they perform.
What is the difference between pelvic and thoracic limbs?The main difference between the thoracic and pelvic limbs is in the function they perform: the thoracic limb is responsible for directing the animal, that is, its displacement in different directions, while the pelvic limb is related to the animal's ability to traction, that is, the force to perform movements in a given direction.
With this information, we can conclude that the thoracic and pelvic limbs represent the main portion of the skeleton and are responsible for the locomotion of animals. The main difference between the thoracic and pelvic limbs is in the function they perform.
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Teddy is explaining to his class that hydrothermal vents form isolated ecosystems. Which point should he explain? A. The organisms of the hydrothermal vent do not interact with the organisms of different ecosystem. B. The organisms of the hydrothermal vent are a part of other food webs. C. There is a continuous input and output of energy and materials in the hydrothermal vent. D. Sunlight plays a vital role in the hydrothermal vent ecosystem.
Answer:
A
Explanation:
In such an isolated ecosystem, there is usually an autotroph species that coverts the abiotic elements in the environment to biotic elements. In a hydrothermal vent, it is likely that there are some chemoautotrophic bacteria that covert the sulfur and other chemicals in the water into organic molecules. This energy is then transferred up the food web in the closed ecosystem. In such an ecosystem, even the waste product of one life form may be utilized by another species.
Answer:
A
Explanation:
a idea that is repeatedly tested and widely excepted is
Answer:
Theory
Explanation:
A scientific theory is what best fits your description. A scientific theory basically explains aspects of the natural world. However, scientific theories are not just ideas, it is based on collaborative works that tests the idea through the scientific method. Theories are verified through repeated testing.
Scientific hypotheses can eventually become a scientific theory when results have been verified through repeated testing.
What is a cuticle?
O
A. A plant that produces seeds
O
B. A haploid form of a plant
O
C. A small organism that lives in a plant
D. A waxy coating on a plant
O
SUBMIT
Answer:
D. A waxy coating on a plant
Explanation:
A cuticle can be described as a waxy covering which preserves or protects certain parts of plants like leaves, shoots etc. Lipid molecules which are saturated with waxes make up the cuticle. Cuticle majorly functions in stopping the evaporation of water from the cell's epidermal layers. All the species of plants possess this waxy coating of cuticle because it plays important role in stopping the loss of water from the cells.
Answer:
D a waxy coating
Explanation:
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16. What part of the cell does 1 represent?
A. Gelatin
B. Golgi apparatus
C. Mitochondria
D. Cell membrane
Answer:
The correct answer is B. Golgi apparatus
Explanation:
Part of the cell does 1 represent is Golgi apparatus
GOLGI APPARATUS:The Golgi apparatus or Golgi complex or Golgi body, it is a membrane bound organelle found only in eukaryotic cells. It is made up of series of cisternae,flattened stacked pouches and located in the cytoplasm just next to the ER (endoplasmic reticulum) which is near to the cell nucleus like shown in this picture.
There in this picture 1 is represented by golgi apparatus, option B is correct.
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Look at the ecological pyramid here. Which organism would you expect to find at level D?
Answer: The option D is the correct answer.
Explanation: The ecological pyramid is a representation in our ecosystem which shows the flow of energy at different levels. Daisy is a flower which is eaten by animals. Thus, Daisy should be at the bottom.
Cougar
↑
Squirrel
↑
Rabbit
↑
Daisy
Fungi can act as decomposers in the environment. Why is this inportant
Answer:
Fungi help in clear waste and dead material and provide nutrients to the plants.
Explanation:
Decomposers are very essential for any food web in an ecosystem. If there were no decomposers in any ecosystem, the autotrophs would not get important nutrients, and waste and the dead matter would pile up.
Fungi are the primary decomposer of litter in most of the ecosystem. They decompose dead, organic matter or waste by releasing various enzymes to break down the material. They absorb the nutrients form in the decaying material.
Hyphae are the part that breaks down and absorbs nutrients,
Thus, the fungi help in clear waste and dead material and provide nutrients to the plants.
You are standing in a location that is clear in the morning, but in the afternoon there are thunderstorms. There is no wind during the day, so the thunderstorms build directly above you. Describe how this happens.
Answer:
weather moves
Explanation:
Afternoon thunderstorms can develop from warm, moist, and unstable air that rises due to convection, leading to cumulus clouds which evolve into thunderstorms. The release of latent heat during condensation fuels this process, and as the storm grows, downdrafts create gust fronts. Without wind to move these storms, they can develop directly overhead.
Explanation:The occurrence of afternoon thunderstorms without preceding wind can be attributed to the convection motion of warm, moist air that becomes unstable. In the morning, when the air is clear, the sun heats the ground, which in turn warms the air above it. This warm air holding moisture from the surface starts to rise. As it ascends, the air cools and the water vapor condenses to form cumulus clouds in a process called the cumulus stage of thunderstorm development. Eventually, these clouds grow large and dense enough to reach the lower condensation level, leading to precipitation and the formation of a thunderstorm directly overhead by the afternoon.
The latent heat released during condensation is significant because it further warms the air within the cloud, making it unstable and leading to further uplift, contributing to the storm's growth. Concurrently, cooler air from the surroundings is drawn down towards the ground creating downdrafts. This condition intensifies when there's a sudden release of rain, which adds to the downdraft and can cause a cool wind gust ahead of the thunderstorm, a phenomenon commonly referred to as a gust front or outflow boundary. Without a prevailing wind to steer the storm, it can build directly above the location where the initial convection began.
When a lever rests on a fulcrum, a heavy object on one end of the lever can be lifted with less _____.
A. work
B. force
C. energy
D. resistance
Answer:
A
Explanation:
Work is a product of force and distance. In other terms, when the force applied on point result to movement, then work done is the force applied multiplied by the distance/displacement of the movement. Work is measured in Joules. In this case, work can be derived as W = Fs cos θ; where θ is the angle of displacement at the fulcrum.
What should be included in an experimental design because of the way data is analyzed using statistics?
Answer:
Replication should be included in an experimental design because of the way data is analyzed using statistics.
Explanation:
Answer:
Replication should be included in an experimental design because of the way data is analyzed using statistics.
Explanation:
Which hypothesis is best supported by this graph?
A graph is supported by a line, so probably a line.
The hypothesis is best supported by this graph is the Cardinals’ food supply increased. Therefore option D is correct.
This can be inferred from the increasing trend in the number of cardinal chicks over time. As the food supply for cardinals increased, more chicks were able to survive and thrive, leading to an increase in the population of cardinal chicks.
The graph does not provide direct evidence or information about the population of cardinal predators, the feeding behavior of dominant cardinal chicks, or the spread of disease among cardinals.
Therefore, the most reasonable explanation based on the information provided is that the increased food supply contributed to the increase in the number of cardinal chicks observed in the graph.
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Your question is incomplete, but most probably your full question was,
5. Which hypothesis is best supported by this graph?
a. The population of cardinal predators increased.
b. Dominant cardinal chicks were the first to be fed.
c. A disease of cardinals spread throughout the park.
d.The cardinals’ food supply increased.
Why do plants complete photosynthesis?
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. ... The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.
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which layer or Earth has partially melted material that moves the tectonic plates??
A - Crust
B - Inner Core
C - Mantle
D - Outer Core
Answer:
Mantle
Explanation:
The correct answer is C. Mantle
Explanation:
The Earth's mantle is one of the layers that compose Earth; this differs from other layers because it is partially melted and it represents most of the volume of Earth. Besides this, its composition and location below the outer core make this layer responsible for changes and phenomena in the surface such as volcanoes, new mountains, and Earthquakes, this is because the tectonic plates are over the mantle and the mantle is composed of soft and flexible materials that move and change. According to this, the mantle is the layer with partially melted material that moves the tectonic plates.
A file cabinet with an original price of $50 is on sale for $35. by what percent did the price change?
Answer:
30%
Explanation:
The answer is 30% because if you do 35 divided by 50 equals 0.7. That leaves 0.3 left over from one. The number 1 represents 100% therefore 70% of 50 is 35 which means that the price changes by 30%
Which safety procedure is important to follow when using a Bunsen burner?
When using a Bunsen burner, clear the workspace of flammable materials, use tongs or heat-proof gloves when handling, never leave it unattended, turn off when not in use, and tie back long hair and loose clothing.
Explanation:An essential safety procedure when using a Bunsen burner is always ensuring that your workspace is clear of any flammable materials before lighting the burner. In addition, you should always use tongs or heat-resistant gloves when handling hot equipment. Never leave a lit Bunsen burner unattended as it could result in a fire. Always turn off the Bunsen burner when not in use to prevent accidental fires or burn injuries. Lastly, remember to tie back long hair and avoid loose clothing when working with a Bunsen burner to prevent them from catching fire.
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What distribution pattern describes wolves that live in packs? independent uniform random clumped
Answer:
definitely uniform
cos they're not independent cos only rabid wolves r independent unless a wolf got left behind or something, not clumped, wolves hunt in an organized pattern and most definitely not random
The wolf pack structure is a type of population distribution called clumped distribution.
Clumped dispersion. In a clumped dispersion, individuals are clustered in groups.
A clumped dispersion may be seen in plants that drop their seeds straight to the ground—such as oak trees—or animals that live in groups—schools of fish or herds of elephants.
What is the difference between clumped uniform and random dispersion?Clumped dispersion is when individuals in a population are clustered together, creating some patches with many individuals and some patches with no individuals. In uniform dispersion, individuals are spaced evenly throughout an area. And in random dispersion, individuals are arranged without any apparent pattern
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______ signal problems with your exhaust system
Besides reducing the noise created by your engine, the exhaust system directs harmful gases away from the cabin, helps cool ...
Answer:
Excesive smoke
Explanation:
The exhaust system is the system in machines that work with fuel burning engines, the exhaust system is in charge of taking out the smoke and substances produced by conmbustion and other processes in the engine, excesive smoke from the exahust system can signal problems with the exhaust system.
How can you quantify total biomass in a region?
Total biomass in a region is quantified by measuring the blank mass of all the plants and blank in a population, habitat, or region.
Answer:
Quantifying biomass will depend on the quantity of the biomass and what is being measured. Biomass is the mass of living biological organisms in a given area, species or community at a specified time, which include plants, microorganism or animals.
Answer:
The correct answer would be - 1) Dry and 2) animals.
Explanation:
The biomass is the total or collective mass of the dry matter available in the particular ecosystem at any particular time. The representation of biomass is a pyramid known as the pyramid of biomass.
Biomass includes the animals and plants and other organisms present in that ecosystem.
Biomass is the total mass of all living material within a certain area. This includes all plants, animals and other organisms found there. The area is defined by a scientist so that it can be a specific habitat or region.
Thus, the correct answer is - 1) Dry and 2) animals.