Usually It Is Not Possible to Penetrate Inside a Body

question 21

Multiple Choice

Usually it is not possible to penetrate inside a body cavity without cutting through protective tissues. However, sperm reach the egg without crossing any epidermal barrier. After traveling through the vagina, which body cavity will the sperm enter?

• A) thoracic
• B) pelvic
• C) pericardial
• D) dorsal
• E) pleural

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Definitions:

Evolution

The process through which species of organisms change over time through genetic variation and natural selection.

Directional Natural Selection

A process where natural selection favors one extreme phenotype over others, causing a shift in the population's genetic variance.

Shift

A change in position, direction, or tendency, often indicating a transformation in conditions or strategies.

Traits

Traits refer to distinguishable characteristics or attributes of organisms, which can be physical, such as color and size, or behavioral.