There Is a Hypothesis That Euryterid Predation on Early Fish

question 55

Essay

There is a hypothesis that euryterid predation on early fish induced the selection for armor in these vertebrates.What kind of evidence would you require to show that there might be a causation here,rather than just a correlation in the fossil record?

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Definitions:

Sympathetic

Pertaining to the part of the autonomic nervous system that prepares the body for stress by accelerating the heart rate, among other responses.

Sympathetic Impulses

Nerve impulses transmitted by the sympathetic nervous system, part of the autonomic nervous system that controls the body's responses to stress or emergency situations.

Angry

A strong emotional state or reaction characterized by annoyance, displeasure, or hostility.

Relaxed

A state of physical or mental ease, often free from tension and anxiety.