The Fossils of Two Adult Birds Are Found in a Nest

question 79

Multiple Choice

The fossils of two adult birds are found in a nest containing several fossilized eggs. Physically, the bird fossils look very different. What are scientists most likely to use to classify these species?

• A)the biological species concept
• B)the DNA-based species concept
• C)the morphological species concept
• D)the evidence of reproduction concept

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Definitions:

Sympathetic Nervous System

A part of the autonomic nervous system that activates what is often termed the fight or flight response.

Somatic Nervous System

The part of the peripheral nervous system responsible for voluntary muscle movement and the reception of external stimuli.

Peripheral Nervous System

The segment of the nervous system comprising the nerves and ganglia that are not part of the brain and spinal cord.

Parasympathetic

Relating to the part of the autonomic nervous system that conserves energy by slowing the heart rate and increasing intestinal and gland activity.