Observations of a Wide Variety of Vertebrate Embryos Suggest That

question 90

Multiple Choice

Observations of a wide variety of vertebrate embryos suggest that

• A) fish are unrelated to other vertebrates because they are the only vertebrates that develop gills.
• B) all vertebrate species have similar genes for development.
• C) fish, turtles, and mice are more closely related to one another than to either chickens or humans because they have substantial tails.
• D) chickens and humans are closely related because they lack substantial tails.

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Definitions:

Taste Cells

Specialized epithelial cells within taste buds that detect chemical stimuli and initiate the perception of taste.

Threshold

A level, point, or value above which something is true or will occur and below which it is not or will not.

Lacrimal Glands

Glands located in the upper outer region of the orbits that produce tears for lubrication and protection of the eye.

Oculomotor Nerve

The third cranial nerve responsible for controlling most of the eye's movements, including constriction of the pupil and maintaining an open eyelid.