3 years ago

How many years did the precambrain era span

Biology

1 answer:

Vlad1618 [11]3 years ago

5 0

Answer:

Explanation:

It is estimated that the Precambrian Era lasted between 3.9 and 4 billion years. Many scientists believe that this era accounts for 90 percent of the world's history.

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Which of the following is an important function of selenium

mylen [45]

Answer: Selenium is important for reproduction, thyroid gland function, DNA production, and protecting the body from damage caused by free radicals and from infection

Explanation:

Selenium is important for reproduction, thyroid gland function, DNA production, and protecting the body from damage caused by free radicals and from infection.

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3 years ago

There is a population of beetles that typically have black wings. A scientist studying these beetles knows that their eggs hatch

ioda

Answer:

A) Black winged beetles have higher fitness than white winged beetles

Explanation:

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A) DNA fingerprinting

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Rzqust [24]

Answer:

the major difference is that protists are eukaryotes while bacteria and archea are both prokaryotes. this means that prokaryotes do not have a nucleus, and contain circular DNA.

Explanation:

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3 years ago

In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and

DENIUS [597]

Answer:

In prokaryotes that carry out aerobic respiration, the <u>plasma membrane</u> serves the same purpose as the inner mitochondrial membrane and the <u>cytoplasm</u> serves the same purpose as the mitochondrial matrix.

I'm sorry! I only know those two. I hope this helps anyway!

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3 years ago