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Alex777 [14]
3 years ago
8

Someone help me with this

Biology
1 answer:
nadya68 [22]3 years ago
5 0
A horseshoe crab has been around for almost 500 million years. They are classified as arthropods and not actual crabs. However, There are many reasons that have helped them survive this long including, they can eat almost any organic matter. There blood is different from normal, in fact it’s blue. This blood helps them heal any wounds right away. They can also live in areas with very low levels of oxygen, meaning habitat is not a big issue for them. Evolution has also helped them grow and adapt seeing as they’ve survived this long.

Hope that helps:)
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The photo shows plates of rock breaking away from a large mass of rock. Which form of weathering is occurring in the photo?
Alekssandra [29.7K]
The answer is A. Exfoliation
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What is the correct order for the following events in excision repair of DNA? (1) DNA polymerase I adds correct bases by 5′ to 3
mezya [45]

Answer:

1. Damaged bases are recognized.

2.  Part of a single strand is excised.

3. DNA polymerase I adds correct bases by 5′ to 3′ replication.

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Explanation:

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Which statement explains how the fossil record supports the theory of evolution?
mr_godi [17]

It's B

Explanation:

Because the fossil record shows how organisms have evoluate from relatively simple organisms to more complex organisms

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Brown eyes is dominant to light eyes. Mr. O'Ryan has blue (light) eyes. Mrs. O'Ryan is heterozygous for brown eyes. What are the
d1i1m1o1n [39]

Answer:

Brown eyes = 0.5

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Explanation:

Given, B ( brown eyes ) is dominant over b ( blue/light eyes ). So,

BB = Brown

Bb = Brown

bb = blue/light

Mr. O'Ryan = blue eyes = bb

Mrs. O'Ryan = heterozygous brown eyes = Bb

Their children: Bb X bb :

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b    Bb     bb

b    Bb     bb

Half of the children will have Bb genotype and brown eyes, other half will have bb genotype and blue eyes. Hence, Kellan O'Ryan has 0.5 probability of blue eyes and 0.5 probability of brown eyes.

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3 years ago
Which of the following is NOT a distinguishing characteristic of prokaryotic cells? A) Their DNA is not enclosed within a membra
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Answer:

The answer is:

E. They lack a plasma membrane.

The reason is that the plasma membrane is actually a very important part of their cell. Hope that helps! :)

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