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Fed [463]
3 years ago
10

How could early life have changed the Earth?

Biology
1 answer:
timofeeve [1]3 years ago
6 0
Life on Earth has also changed tremendously. At first, the Earth was not even able to support life. There was no oxygen in the atmosphere, and Earth's surface was extremely hot. Slowly, over millions of years, the Earth changed so that plants and animals could begin to grow.
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If a behaviorist has someone experiencing road rage turn up the radio and sing loudly when he or she is angry, what is he applyi
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D, <span>positive reward. :)</span>
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3 years ago
Read 2 more answers
I’m marking as brainliest! Answer the correct answer !
expeople1 [14]

Answer: B

Explanation: took the test 3 days ago and teacher went over the correct answer and i got it right hoped this helped :) PS: i think its the same test as mine is the second question . In humans, the first seven pairs of rib bones are connected to the sternum (breastbone) by cartilage. Which of the following statements describes the main reason why cartilage is important in these bone-to-bone connections?

5 0
3 years ago
A species of fly has two alleles for the length of their legs. The allele for long legs is dominant and is represented by p. The
ankoles [38]
The answer is 0.43


To calculate p we will use one of two formulas of the <span>Hardy-Weinberg principle:
</span>

p² + 2pq + q² = 1 and p + q = 1

where:

p - the frequency of the allele for long legs which is a dominant trait.
q - the frequency of the allele for short legs which is a recessive trait.

p² - the frequency of dominant homozygote (with long legs)

2pq - the frequency of heterozygote (with long legs)

q² - the frequency of recessive homozygote (with short legs)


So, 33 of 100 organisms have short legs. The frequency of recessive homozygote is represented by q²:

q² = 33/100 = 0.33

⇒ q = √0.33 = 0.57


Using the formula:

p + q = 1

p = 1 - q = 1 - 0.57 = 0.43


Therefore, p = 0.43

5 0
3 years ago
At its core, science is about inquiry—the act of asking questions and seeking answers. Most labs begin as the result of a questi
Mkey [24]

Answer:

Hi What is the perimeter of this polygon?

A

−11f−8d−11

B

−f+5d−3d−3f

C

f−3+6d

D

2d−4fWhat is the perimeter of this polygon?

A

−11f−8d−11

B

−f+5d−3d−3f

C

f−3+6d

D

2d−4f

Explanation:

6 0
4 years ago
Worm 2 belongs to which category?<br><br> Acanthocephla<br> Ascaris<br> Lumbricus<br> Nais
charle [14.2K]

Answer:

Ascaris

Explanation:

7 0
3 years ago
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