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OleMash [197]
3 years ago
11

Which statement can be best supported by the fossil record

Biology
1 answer:
kirill [66]3 years ago
5 0

Answer:

Many organisms that lived in the past are now extinct .

Explanation:

please mark me as brainliest

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explain why it is important to keep the levels of nucleotides relatively balanced in the context of dna and rna synthesis
juin [17]

Answer:

Read Below

Explanation:

Nucleotides are A & T and G&C you see in DNA and in RNA T is Replaced by U. The reason they must be balanced between G&C and T&A is because G has to bond with A in DNA and G with C so if there is more G than C that means there is mismatches between the DNA nucleotides same thing for A and T. In RNA you follow the same rule. If we have lets say 27% of our DNA as A we have to have 27% as T leaving 23% as C and 23% as G. If there was lets say 29% T while one 27% A then there was a error in DNA replication and could lead to errors in RNA synthesis if not corrected

4 0
3 years ago
A puff of air to the eye causes a reflexive blink. If you precede the puff of air with a buzzer, eventually the buzzer will caus
Brums [2.3K]

There are options for this question they are:

a) neutral stimulus; conditioned stimulus

b) conditioned stimulus; neutral stimulus

c) unconditioned stimulus; conditioned stimulus

d) neutral stimulus; unconditioned stimulus

e) unconditioned stimulus; neutral stimulus

The correct answers are - In this example, the buzzer begins as the neutral stimulus and eventually becomes the conditioned stimulus. The buzzer initially is a neutral stimulus because it have no role to play in the blinking response. Eventually though through learned association the buzzer becomes a conditioned stimulus because you now associate it with a puff of air to the eye which in turn causes you to blink.

5 0
3 years ago
_______________________________ are the smallest, thinnest vessels in a closed circulatory system and are the site of the exchan
Greeley [361]
Capillaries: <span>any of the fine branching blood vessels that form a network between the arterioles and venules.</span>
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3 years ago
The largest number of individuals an ecosystem can support is call its ?
mylen [45]
Population because you are holding it
5 0
3 years ago
Read 2 more answers
Billy thinks evolution is slow and continuous. He believes in
timurjin [86]

Answer:

The correct answer is - Gradualism.

Explanation:

Gradualism is the theory that new species evolved from existing species through progressive, frequently subtle changes as opposed to through unexpected, significant changes. The little changes are accepted to bring about distinguishable changes over long periods of time.

Gradualism is a model that explains the process of evolution that alludes to the minuscule varieties in a life form or in the society that occur after some time to improve a fit for creatures and people in their condition. These varieties permit them to endure and flourish, bringing about the moderate and predictable procedure of progress in the entire populace.

Thus, the correct answer is - Gradualism.

6 0
3 years ago
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