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svp [43]
3 years ago
12

You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:

Biology
1 answer:
lianna [129]3 years ago
3 0

Answer:

The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split

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Three boats were moving across the surface of a smooth lake. The gray and pink boats have the same mass, and both of these boats
garik1379 [7]

Answer: There is no diagram but I had this on a test last week. The answer is the gray and pink boats experienced the strongest force because they are both more massive than the orange boat, and they all changed speed by the same amount.

6 0
2 years ago
What is unusual about Earth’s mantle being exposed?
cluponka [151]

Answer:

There is no actual way that the mantle could be...'exposed' or 'seen'. But scientists have managed to find multiple ways to analyze the mantle and it's actual existence by using multiple devices. The mantle is basically a 2,900 kilometers (1,802 miles) thick blocks of rocks and minerals underneath the crust(or the surface of the earth) , and makes up a whopping 84% of Earth's total volume.

6 0
2 years ago
The following DNA fragment contains the sequence for the translation initiation codon usually used in genes: T A T A A G G C A T
Georgia [21]

Answer:

A T A T T C C G T G T A T A A G G C A T C

Explanation:

Thymine pairs with adenine

Guanine pairs with cytosine

4 0
3 years ago
How does heart rate change during and after an exercise is performed for two different periods of time?
andrew-mc [135]

Answer:

During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.

Explanation:

8 0
3 years ago
Didn't even mean to do this
Fynjy0 [20]

Answer:

If an organism has a beneficial trait, they have a higher chance of survival, and if they can survive they can reproduce too.

Example: Speckled moths camouflage with the bark of trees and are not easily seen by predators. Black moths do not camouflage with the bark of trees and are easily seen by predators, therefore the black moths are eaten. Because the black moths have been eaten they cannot reproduce and pass on the trait for black wings to their offspring, but the speckled moths are able to reproduce because they survived and are able to pass on the speckled wing trait to their offspring.

7 0
3 years ago
Read 2 more answers
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