Natural selection because natural selection selects the trait that causes a species to thrive the most, genetic drift isn’t correct because it mostly has to do with physical traits and not traits that help with hunting, finding mates, and finding food.
Answer:
C: Natural Selection
Explanation:
Hope this helps
A forest ecosystem experiences a wildfire that completely destroys one tree species. Which of these is the MOST likely effect on the ecosystem?
A - An Increase in available water
B - An Increase in population density
C - A decrease in the amount of sunlight
D - A decrease in the number of animal species
(This is Apex)
Answer:
A decrease in the number of animal species
Explanation:
because it is burning an entire tree species, animals that relied on that tree to live whether it be for living or eating reasons, wont have that source available to them. They would either slowly die out or leave to a habitat they could live in. Therefore, there would be a decrease in animal species.
hope this helps :)
A forest ecosystem experiences a wildfire that completely destroys one tree species. A decrease in the number of animal species is the most likely effect on the ecosystem.
What are the effects of wildfire?Definition: Natural or artificial disaster that is an unpredictable fire caused in the forest area. It can last anywhere between hours to days. The average duration of wildfire is 76 days according to reports.
The balance of the ecosystem is disturbed.Huge loss of terrestrial life.Forest is the home of wild animals and this wildfire can possibly disturb the habitat of the animals.This can eventually lead to a decrease and extinction of the animal species.Hence, option D is the right answer.
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Please help I honestly think it’s between nucleic acids and proteins someone explain I’ll try to put lots of points and I’ll also like your answer and mark it best. Please answer if you are 100% sure
Answer: nucleic acids
Nucleic acids have information-carrying molecules of the cell, they determine the traits of an organism.
Answer:
proteins
Explanation:
because proteins is responsible for genes
Questions 6-10 relate to the Digging the Fossil Record on the Smithsonian website. Each complete and correctly answered question is worth 2 points.
6. Where is your virtual dinosaur dig happening? Describe the conditions at the dig site.
7. Look at the pictures. What are the different tools used at a dig site and what are their uses?
8. What kind of animal did you uncover in your dinosaur dig?
9. How are fossils protected for transport?
10. After the dig, give the following information: When did it live and where was this specimen found?
Answer: 6. Where is your virtual dinosaur dig happening? Describe the conditions at the dig site.
It’s happening at the Judith River Formation in Montana. There are hills that are covered with rocks and gravel.
7. Look at the pictures. What are the different tools used at a dig site and what are their uses?
Hammers, the end of a broom, brushes, and pickaxes.
8. What kind of animal did you uncover in your dinosaur dig?
A ceratopsian dinosaur.
9. How are fossils protected for transport?
They are encased in field jackets made from burlap and plaster to protect them during transport.
10. After the dig, give the following information: When did it live and where was this specimen found?
This dinosaur lived in the Cretaceous Period, it was found in the Upper Cretaceous rocks of the Judith River Formation.
Ammonite is a species of shellfish that is used as an index fossil. It has a distinct spiral shell. Which statement most likely explains why other species of shellfish that existed around the same period of time are not considered index fossils?
A.
Other shellfish did not contain the carbon-14 isotope.
B.
Other shellfish were much smaller in size than ammonites.
C.
Other shellfish were not as widespread as ammonites.
D.
Other shellfish did not have a rigid external body, like ammonites.Match each process to where it occurs in the carbon cycle.
Answer:
The answer is C. Other shellfish were not as widespread as ammonites.
Explanation:
Ammonites is a group of marine animals that no longer exist due to extinction. They are classified to phylum Mollusca. Ammonites are identified by their external coiled shells that are preserved as fossils. They are used as Index fossils because the rocks having ammonites fossils can be linked to a specific geologic time zone. Ammonites were present in abundance and had wide geographical distribution making them excellent candidate of index fossils.
What’s the frequency of rr genotype
The frequency of the "A" allele. Answer: Since q = 0.6, and p + q = 1, then p = 0.4; the frequency of A is by definition equal to p, so the answer is 40%. The frequencies of the genotypes "AA" and "Aa." Answer: The frequency of AA is equal to p2, and the frequency of Aa is equal to 2pq
which phrase describes a scientific theory
What is the paragraph?
The _____ gland regulates the rate of body metabolism. thyroid hypothalamus parathyroid pancreas
Answer:
The thyroid gland regulates the rate of the body metabolism
Answer:
Thyroid
Explanation:
The thyroid gland releases triiodothyronine and thyroxine hormones that regulate the metabolic rate of the body. These thyroid hormones do not have specific target organs. These hormones stimulate the body cells to increase the rate of cellular respiration and thereby to increase the rate of breakdown of glucose to release energy.
The energy released is used for various functions and growth and development by cells. Hence, the thyroid gland regulates the metabolic rate by increasing the rate of cellular respiration.
The answer to the question I asked plz
Answer:
D
Explanation:
Releasing a new type of organism, genetically-modified or otherwise, can possibly damage the ecosystem, as seen by the invasive species brought to the Americas by the Europeans.
Conservation groups are concerned with wild animal populations so they have pressured governments to create laws to protect them. Which example does NOT protect animal species?
A) whaling
B) fishing limits
C) hunting seasons
Eliminate
D) endangered species act
Answer: A
Explanation:
Whaling is the practice or industry of hunting and killing whales for their oil, meat, or whalebone.
Answer:
A
Explanation: The reason for this is all of the other answer are examples of how to protect these animals such as get rid of hunting season while a does not.
astralia is surrounded by water with climate change it is at risk of?
Answer:
As earth’s temperatures increase with climate change, the polar ice caps melt and the sea levels rise, leaving islands like Australia at risk of flooding and partial, permanent underwater submersion.
A salt solution has a concentration of 200 g/L. How many grams of salt are contained in 500 mL of this solution?
Answer:
100g/500mL
Explanation:
1ml is .001 of 1 L
this means that per one ml, there is 200g*.001, or .2g/mL, or simply .2g.
now we multiply this by 500, for the 500ml we are calculating. 500*.2=100.
We can also skip these steps and take 200g*.5L, as 500mL is 1/2 liter. We get the same outcome, so the answer is 100g
The concentration of the salt solution can be calculated using the formula concentration = mass of solute / volume of solution. By substituting the given values, we find that there are 100 grams of salt contained in 500 mL of the solution.
Explanation:The concentration of a salt solution is given by the formula:
concentration = mass of solute / volume of solution
In this case, the concentration is 200 g/L and the volume of the solution is 500 mL. We need to convert the volume from mL to L:
500 mL = 500 / 1000 = 0.5 L.
Substituting the values into the formula:
200 g/L = mass of solute / 0.5 L.
Multiplying both sides of the equation by 0.5:
mass of solute = 200 g/L * 0.5 L = 100 g.
Therefore, there are 100 grams of salt contained in 500 mL of this solution.
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Which disorder is created as a result of the final chromosomal change that is shown
Answer:
Robertsonian translocation.
Explanation:
the disorder created as a result of the final chromosomal change that is shown is Robertsonian translocation. Translocation is one of the mutation that happens in chromosomes.
Robertsonian translocation
Reproductive Isolation Reproductive isolation is classified as whether it occurs before or after fertilization. is related to geography or anatomy.
Answer:
occurs before or after fertilization.
Explanation:
The answer on USATestprep
Reproductive isolation is the phenomenon which is classified as whether it occurs before or after fertilization.
What is Reproductive isolation?The mechanisms of the phenomenon of reproductive isolation are a collection of all the evolutionary mechanisms, behaviors as well as the physiological processes which are very critical for speciation. They prevent the members of different species from producing new and better adapted offspring, or ensure that any of the produced offspring are sterile. These barriers maintain the integrity of a species through the reduction of gene flow between related species in an ecosystem.
Scientists generally classify the phenomenon of reproductive isolation in two groups which include, prezygotic barriers and postzygotic barriers. A zygote is a fertilized egg, which is the first cell of the development of an organism which reproduces through sexual mode of reproduction.
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HELP ASAP PLEASE!!!! 20 Points
Match the exercise type with the correct term.
Swimming is considered a .
Sprinting for 30 seconds during a jog is a .
Running is a .
Short, high intensity segments are categorized as .
produce(s) less stress on the joints.
Options: Wind Sprint, Low Impact Exercise, High Impact Exercise
Answer:
Swimming is considered a
low impact exercise
.
Sprinting for 30 seconds during a jog is a
wind sprint
.
Running is a
high impact exercise
.
Short, high intensity segments are categorized as
wind sprints
.
Low impact exercise
produce(s) less stress on the joints.
Explanation:
100% on Odyssey PE 2021
Swimming is considered a low impact exercise, sprinting for 30 seconds during a jog is a wind sprint and running is a high impact exercise.
What is sprinting?Sprinting is a footrace over a short distance with an all-out or nearly all-out burst of speed, the chief distances being 100, 200, and 400 metres and 100, 220, and 440 yards.
Moreover, sprinting is an exercise that can help you build muscle mass and burn calories. As a result, potential benefits of sprinting training include improvements in speed, cardiovascular health, blood pressure, and blood sugar levels.
As sprinting is an anaerobic exercise, it helps in build muscles in the same way that weight training does. However, while weight training you focus on one body part at a time. Sprinting, on the other hand, uses dozens of muscles at the same time.
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Which of the following can be explained with science? Plant growth Career options Moral value Meaning of life
Answer:
The answer is A. Plant growth, Plant growth is the only thing that can actually be tested and scientificly measured,
Choose all the answers that apply.
The greenhouse effect is:
slowly increasing global temperature
caused when atmospheric gases trap heat
melting the polar ice caps
slowly increasing sea levels
increasing because of carbon dioxide emissions
increase because of carbon
Answer:
A, C, D
Explanation:
Where does stress build up and eventually release within a fault?
Answer:
Across the surface of the fault.
Explanation:
In the event of a fault, the rocks do not disintegrate immediately. Instead friction generated between the surfaces of a fault hold the rocks together.
The forces separating the rocks builds and accumulates stress over time on the surfaces of the fault until they let go.
The sudden slip of the rocks is what causes the shaking of the earths surface that is refereed to as earthquake.
black fur genotype or phenotype
Answer:
Phenotype
Explanation:
Genotype would be something like homozygous recessive, heterozygous dominant, HH, Hh, hh (etc). It describes the genetical pattern in offspring.
Phenotype is the physical description, such as black fur, brown fur, long ears, short ears, indigo petals, white petals, (etc).
You are digging a hole in your backyard when you see a piece of fossilized bone in the dirt. How could you prove the age of the fossil? Design a procedure for determining the relative and absolute age of the bone.
Pls don't use copy and paste this from other sites or i will get an f for copyright
and brainiest if i get a good grade on it.
Answer: ok first you have to look at the clues or hints of what the given fossil and how many layers or solid Rock on it, now that is seen to go from the youngest to oldest age, we now know that you can design a procedure like a "Rock identification" based on what type of or rock it is for example lime stone this would tell you how far it goes back in time. Just identify the tpe of rock it is and then youll know that its that deep.
I hope this helps just wrote this from scratch for you :)
in the scientific method, a hypothesis (a) is a statement of fact (b) makes a prediction that can be tested (c) is usually proven to be correct (d) can only be tested once
Answer:
B
Explanation:
A hypothesis in the scientific method is a testable prediction about the relationship between variables, which must be falsifiable and is not a statement of fact. It can be supported by evidence but is never proven absolutely correct, as future research may reveal new findings. Option (b) is the correct answer.
In the context of the scientific method, a hypothesis makes a prediction that can be tested (option b). It is an assertion of a relationship between two or more variables, designed to be falsifiable, meaning that it can potentially be proven false through research and experimentation. For instance, the hypothesis "Increased solar radiation increases the rate of plant growth" suggests a testable relationship that can be investigated through experiments. If results show no connection or a negative effect of solar radiation on plant growth, the hypothesis would be disproven.
A hypothesis is not a statement of fact; rather, it's a proposed explanation for a phenomenon. Unlike mathematical proofs, scientific hypotheses can be supported by experimental evidence, but they are never considered absolutely correct, as future research may provide new evidence. Multiple hypotheses can be proposed for a given scenario, and predictions can be made in the format of "If... then..." statements to guide the testing process.
which kingdoms are all organisms multicellular
Answer:
Eukarya
Explanation:
What type of organism utilizes photosynthesis to produce food?
A. Heterotrophs B. Frogs C. Autotrophs D. Sharks
Answer:
Autotrophs
Explanation:
Autotrophs.
I think this is it.
I hope this helps. Good luck
Which is the FALSE statement about Cl-?
A. It is a cation.
B. It is an anion.
C. It has gained an electron.
D. It has more electrons than protons.
Answer:
The answer is:
A. It is a cation
Hope this helps you out!
A single strand of DNA contains the following nine nucleotides in this order: ACT TAT GGA. What sequence of bases will be present on the complementary strand of DNA?
Answer:
The complementary DNA strand is as follows:
TGA ATA CCT
Hope this helps you out!
In humid subtropical climates, _____.
summers are hot with less rainfall than in the winter
winters are cold with more snow than rain
summers are hot with more rainfall than in the winter
there are no freezing temperatures or frost conditions
Answer:
D
Explanation:
In the rainforest, which is a humid subtropical climate, winter is non-existent because of how hot it is.
9. Referring to Figure 2-1, energy flows from
a. coyotes to grasses
b. cats to mice
c. mice to cats
d. coyotes to cats
C. Mice to cats because cats eat mice
Answer:The answer would be mice to cats
Explanation:I really don't have an explanation though.
Phospholipids are important components of __________.
the plasma membrane:)
Phospholipids are important components of cell membranes and lipoproteins. They form a bilayer structure that protects the contents of the cell and regulates the movement of substances in and out of the cell.
Explanation:Phospholipids are important components of cell membranes. They form a phospholipid bilayer that surrounds and protects the contents of the cell, while also regulating the movement of substances in and out of the cell.
The structure of phospholipids consists of a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail. This unique structure allows phospholipids to arrange themselves in a bilayer, with the hydrophobic tails facing inward and the hydrophilic heads facing outward.
In addition to cell membranes, phospholipids are also found in lipoproteins, which transport fats and cholesterol in the bloodstream.
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does evolution have any plan or it is random?
Answer:
evolution is random
Explanation:
there is no explination for evolution over time things find there own way to be better
Answer:
Evolution is random
when placed into a solution that is 30% water an 70% salt, what would happen to a cell that has a 70% water concentraion?
Answer:
how
Explanation:
In a hypertonic solution like 70% salt, a cell with 70% water concentration would lose water due to osmosis. This would cause the cell to shrink or crenate.
Explanation:When a cell that has a 70% water concentration is placed into a solution that is 70% salt and 30% water, the surrounding solution is considered hypertonic relative to the cell's interior. This means the environment outside the cell has a higher solute (salt) concentration than inside the cell. According to the principle of osmosis, water will naturally move from an area of lower solute concentration to an area of higher solute concentration in attempt to reach equilibrium. Consequently, water will move out of the cell and into the solution, causing the cell to lose water and shrink or crenate.
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When you overfill your glass with water and there’s a slight bulge at the top of the glass, you are witnessing the _____ property of water. Adhesive, cohesive, expansive.
Answer:
adhesive
Explanation:
the water sticks to the glass because of surface tension
Answer: Adhesive
Because the water is sticking with the other water in the cup. The water in the cup is making the rest of the water get pulled down by the tension.