The Evolutionary Innovation That First Appeared in Arthropods and Is

question 79

Multiple Choice

The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of

• A)bilateral symmetry.
• B)coelomic body architecture.
• C)jointed appendages.
• D)segmentation.
• E)three primary types of tissues.

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Definitions:

Social Phobia

A mental health disorder characterized by significant anxiety and fear of being judged, negatively evaluated, or rejected in a social or performance situation.

Bipolar Disorder

A psychiatric condition characterized by extreme mood swings, including emotional highs (mania or hypomania) and lows (depression).

Depression

An emotional health issue characterized by a sustained state of depression or an absence of motivation in pursuits, significantly hindering daily operations.

Manic Episodes

Periods of abnormally elevated mood, energy, and activity levels, often seen in bipolar disorder, characterized by impulsivity and rapid thought processes.