Similar Fusiform Body Shapes Are Seen in Sharks, Penguins, and Aquatic

question 54

Multiple Choice

Similar fusiform body shapes are seen in sharks, penguins, and aquatic mammals because

• A)natural selection has no limits when different organisms face the same challenge.
• B)respiration through gills is enhanced by having a fusiform shape.
• C)the laws of physics constrain the shapes that are possible for aquatic animals that swim very fast.
• D)the fusiform shape is coded by the same gene in all three types of animals.
• E)all three types evolved from ancestral forms that fly in the air.

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Definitions:

Depressants

Drugs that slow activity in the central nervous system.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out information.

Slow Down

A decrease in speed or rate, often advised as a strategy to reduce stress or increase accuracy in tasks.

Depressant

A substance that reduces arousal or stimulation, affecting the central nervous system by slowing down the body's functions and processes.