The Questions Below Refer to the Following Evolutionary Tree, in Which

question 8

Multiple Choice

The questions below refer to the following evolutionary tree, in which the horizontal axis represents time (present time is on the far right) and the vertical axis represents morphological change.

-Which of these is the extant (that is, living) species most closely related to species X?

• A) V
• B) W
• C) Y
• D) Z

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Definitions:

Proteins

Large, complex molecules essential for the structure, function, and regulation of the body's cells, tissues, and organs.

Carbohydrates

Organic compounds, found in foods and living tissues, including sugars, starch, and cellulose, which are an important energy source.

Skeletal Muscle Mass

The amount of muscle attached to the skeleton, responsible for movement and strength in the body.

Blood Capacity

The total volume of blood that circulates within an individual's body, which varies based on size and health conditions.