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Consider the ringlike patterns on an earthworm and "six-pack abs" in humans. In an animal's body plan, what are they both evidence of?
Autonomic Nervous System
A component of the nervous system that controls involuntary functions such as heart rate and digestion.
Direct Effects
Immediate outcomes or impacts of an action, intervention, or phenomenon without the mediation of other factors.
Reactivity
The tendency of a person or system to be affected by external stimuli or conditions.
Type A Personality
A characteristic of one's personality marked by intense competition, self-driven stress, and a perpetual feeling of haste.
Q3: sea urchins and sand dollars<br>A)Petromyzontidae<br>B)Amphibia<br>C)Crinoidea<br>D)Metatheria<br>E)Chondrichthyes<br>F)Actinopterygii<br>G)Urochordata<br>H)Aves<br>I)Myxinoidea<br>J)Holothuroidea<br>K)Cephalochordata<br>L)Eutheria<br>M)Ophiuroidea<br>N)Testudinata<br>O)Squamata<br>P)Asteroidea<br>Q)Prototheria<br>R)Echinoidea<br>S)Hemichordata
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