Choose all the answers that apply.

Biology

2 answers:

nekit [7.7K]2 years ago

7 0

Answer:

carry thousands of genes

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. Some traits are caused by mutated genes that are inherited or that are the result of a new gene mutation.

schepotkina [342]2 years ago

7 0

Answer:

tight coils of DNA

always occurs in pairs

carry thousand of genes

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In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur shown i

Semenov [28]

The question is incomplete. The complete question is as following:

In humans, the pelvis and the femur, or thighbone, are involved in walking. In whales, the pelvis and femur shown in this figure represent...

Answer:

vestigial structures

Explanation:

A "vestigial structure" or "vestigial organ" are defined as the organs that no longer have any function in the organisms' body but had an important role in past.

<em>Pelvis and femur are thigh bones in humans which helps them in walking but in whale's pelvis and femur are considered as vestigial structures. </em>

The pelvis and femur in whales, are the inherited structure from ancestors and shows evidence for evolution on the basis of natural selection.

Hence, the correct answer is vestigial structures.