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lianna [129]
3 years ago
6

What were the first living “things” called? (between 3.9 and 3.5 billion years ago)

Biology
1 answer:
jolli1 [7]3 years ago
4 0
Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
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lana [24]
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3 0
3 years ago
E is a dominant allele for wet earwax and e is a recessive allele for dry earwax. if two individuals with the phenotype of wet e
MrRissso [65]
Given 
E dominant allele for wet
e recessive allele for dry

that means
for phenotype wet, the possible genotypes are EE, or Ee, and
for phenotype dry, the only possible genotype is ee.

Therefore we also know that the child who has dry earwax has genotype ee.
Since the child inherits one allele from each parent, therefore each parent must have a recessive allele "e".

If both parents have phenotype wet earwax, they both must be heterozygous for wet/dry earwax, namely Ee.

8 0
3 years ago
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MrRissso [65]

The right answer is D.

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External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.

8 0
3 years ago
Layers of sediment are usually deposited by?
Bogdan [553]
I would say c is the answer

6 0
3 years ago
Explain the importance of the blood returning to the heart twice in one cycle​
a_sh-v [17]

Answer:

Explanation:

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6 0
3 years ago
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