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julia-pushkina [17]
2 years ago
6

The energy source for sperm to swim comes from

Biology
1 answer:
Rama09 [41]2 years ago
5 0
The energy source of the sperm for them to swim is the protein breakdown by mitochondria in the midpiece of the sperm.

Mitochondria are double membrane-bound organelles found in the cells. It is said to be the "powerhouse of the cell". They provide ATP as a source of chemical energy for the cells.
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Vanessa is studying 6 species of butterflies, which she codes with the letters A to F. She constructs the cladogram, shown below
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Answer:

The third option is the correct answer.

Explanation:

As you may already know, a cladogram is a diagram capable of representing the evolution of living beings, through their ancestry and genetic similarities.

In a cladogram, the main line is the root and represents the common ancestor among all living beings that will be added throughout the cladogram. The adjacent lines, the main line are the branches and represent the groups of living beings represented. Each point between the lines, are the nodes and represent cladogenetic events.

As you can see in the cladogram shown in the question above, species C and D come from the same branch, which means that these species are more genetically close and that they have many similarities in their genomes. However, species B and C or D and E, despite having the same ancestor in common, come from different branches, which means that they are less genetically similar.

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2 years ago
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2 years ago
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yulyashka [42]

A. It forms a part of the upper atmosphere known as the ozone layer.

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Explanation:

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