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gtnhenbr [62]
3 years ago
5

The early purple bacteria could not survive in oxygen-rich environments. How did the arrival of the green bacteria likely affect

the survival of purple bacteria?
Biology
1 answer:
Mariulka [41]3 years ago
7 0

Answer:

Because the green bacteria produced oxygen during photosynthesis, the purple bacteria had a harder time surviving.

Explanation:

Sample Answer

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Which describes the 23 pairs of human chromosomes?
Zigmanuir [339]

Answer:

option B

Explanation:

there are 22 pair of autosome and 2 pair of sex chromosome

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3 years ago
What is the correct order FROM SMALLEST TO LARGEST ( DNA, Genes, Nucleus, Chromosomes)
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1.Genes

2.DNA

3.Nucleus

4.Chromosomes

Explanation:

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2 years ago
Abigail is testing the effects of three fertilizers on grass growth. She conducts multiple trials and collects data. Abigail wou
vagabundo [1.1K]

Answer:

C

Explanation:

This is what is referred to as peer-reviewing. To gain veracity for her results, the fellow scientist replicates the experiment under the same parameters that she did and determines if the same results are achieved, If so, the results and experiment gain veracity and can be quoted on other scientific journals. For the experiment to be replicated, it needs to be clearly defined in the report, a requirement for all scientific reports.

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4 years ago
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How does the extraction of resources affect the environment?​
Varvara68 [4.7K]

Answer:

The extraction of resources affects the environment by changing it

Explanation:

We know the environmnet changes when we see more polluted air. This happens because of the extraction of trees in our environmnet. People cut down trees to make things, they dont undertsand the importance of trees. We need them to survive. Trees provide oxegen for us to breate and live. The more trees we cut down, the more polluted air we breath in.

3 0
3 years ago
12. What does it mean to be a recessive allele?<br> a. Give an example:
mezya [45]

Answer:

The less important allele.. ish. The allele will only "work" (Show up) if there is two recessive allele. And Ressesive allele is always lower case. So rr will show up but Rr wont because there is a dominant allele. Hope this help. :)

Explanation:

Blue Eye is recessive allele

Brown eye is dominant allele

4 0
3 years ago
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