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ohaa [14]
4 years ago
5

A crayfish’s swimmerets are used only for swimming. a. True b. False

Biology
1 answer:
marta [7]4 years ago
6 0
Its false because lobsters have swimmerets as well and they dont use them only for swimming
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William and Quentin are fraternal twins. This means they share, on average, what % of genes with one another?
nordsb [41]

Answer:

The correct answer is 50%

Explanation:

Fraternal twins are the twins which are produced from the fertilization of two different eggs by two different sperms. These eggs are released at the same time.

So as fraternal twins are produced from fertilization of two different eggs therefore they share 50% of genes with each other just like other siblings. They are also called dizygotic twins

Identical twins are produce from a sigle fertilized cell which later divides into two cell mass. Indentical twins share 100% gene. Therefore the correct answer is 50%.

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3 years ago
The ears, feet and tail of north american mammals are often smaller in northern species than they are in southern species. Expla
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This phenomenon can be explained by Allen's rule. It says that the body proportions and shape may vary in different climates. The temperature decreases as the latitude increases, so in the northern region is much colder. Animals must preserve heat in such conditions. So, exposed surface areas of the body, such as the ears, feet, and tail, are usually minimized to minimize heat loss in the cold climate. <span>Therefore, northern species often have smaller ears, feet, and tail than the southern species. </span>
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4 years ago
What are some of the ways that animals rely on plants?
love history [14]

Background. Plants and animals depend on one another for survival in all of Earth's many habitats. ...

Pollination. Pollination is necessary for plants to create new seeds. ...

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Fertilization.

Hpe this helps :3

4 0
3 years ago
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yuradex [85]

Methane the most, small amount of oxygen and other gases

8 0
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Why does the weathering rate increase at higher elevations?
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Well Rocks at high elevation are exposed to low temperature and high winds they weather quickly and rock at sea level can be weathered by the ocean waves. 
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