Which One of the Following Features of Archaeopteryx Clearly Demonstrates

question 21

Multiple Choice

Which one of the following features of Archaeopteryx clearly demonstrates that it was on the evolutionary line leading from dinosaurs to birds?

• A)egg-laying ability
• B)teeth
• C)feathers
• D)bony tail

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Definitions:

Circadian Rhythm

The biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle.

Biological Functioning

The processes and activities carried out by living organisms to maintain life, including growth, metabolism, and reproduction.

24-Hour Cycle

A natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours, also known as the circadian rhythm.

Suprachiasmatic Nucleus

A tiny region in the brain's hypothalamus responsible for controlling circadian rhythms.