Adaptations to Terrestrial Environments Evolved Independently in Arthropods, Mollusks, Nematodes

question 1

Multiple Choice

Adaptations to terrestrial environments evolved independently in arthropods, mollusks, nematodes, and annelids. What logical conclusion would you make from this statement?

• A) All these groups lost their coelom after moving to land.
• B) All these groups have the same type of body plan.
• C) All these groups have a coelom.
• D) The common ancestor of all these groups was probably aquatic.

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Definitions:

Event Occurs

Indicates the happening of a specific condition or outcome within a statistical experiment.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation indicates that the values are close to the mean.

Poisson Distribution

A probability distribution that expresses the probability of a given number of events occurring in a fixed interval of time or space.

Expected Value

The calculated average of all possible values in a probability distribution, weighted by their probabilities.