The Systematics of Today Is Very Different from the Systematics

question 84

Multiple Choice

The systematics of today is very different from the systematics learned a generation ago. As a result, which statement is the least accurate?

• A) The biological species concept has no validity.
• B) The number of existing species is known with certainty.
• C) The Linnaean system of classification is wrong most of the time.
• D) Morphological traits are not reliable for determining species relationships.
• E) Evolutionary-based classification has entirely reorganized the classification and categories of organisms and their relationships to one another.

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Definitions:

Palpebral Fissures

The opening between the upper and lower eyelids, which can vary in size and shape across individuals and can be affected by certain conditions.

Cranial Nerve

These are the twelve nerves that emerge directly from the brain (as opposed to the spinal column) and are responsible for a variety of functions including sensory information and muscle control.

Symmetric

Having parts that match each other in size, shape, and position; being the same on both sides of a dividing line.

Trigeminal Nerve

The fifth cranial nerve responsible for sensation in the face and motor functions such as biting and chewing.