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inessss [21]
4 years ago
8

If oxygen gained two electrons how many electrons would be in its outer shell? A. 2 B. 6 C. 8 D. 10

Biology
1 answer:
irina [24]4 years ago
8 0
C. 8

Oxygen atom has 6 electrons in its outer shell. It becomes 8 after receiving two more electrons.
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It is assumed that organisms with similar anatomical characteristics have evolved relatively recently and have a common ancestor.

<h3>How does comparing the physical characteristics of different creatures help us understand evolution?</h3>

To comprehend how living things originated, scientists study the anatomy, embryos, and DNA of various species. Homological structures provide proof of evolution. These are features that were passed down from a common ancestor and are shared by related creatures. An further piece of evidence for evolution is offered by similar structures.

<h3>What role does anatomy play in the study of relationships between various types of organisms?</h3>

Comparative anatomy, which compares structural similarities, is one of the strongest types of evidence of creatures to ascertain the links between them throughout evolution. It is assumed that organisms with similar anatomical traits have evolved from ancestors who were reasonably closely connected to one another.

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brainly.com/question/19548636

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1 year ago
Gene genealogies can vary for different loci. What does this imply for species trees? Group of answer choices
hodyreva [135]

Answer:

The correct answer is option B) "Species trees should be constructed using multiple loci (both nuclear and mtDNA)".

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3 0
3 years ago
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MrRa [10]

Answer:

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Explanation:

Incomplete dominance is a type of non-mendelian inheritance pattern in which one allele of a gene is not dominant or recessive to the other allele, hence, both alleles combine to form a third intermediate phenotype, which is a blending of both parental phenotypes.

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