Young Multicelled Organisms Usually Start Out Small, Then Grow in Size

question 18

Multiple Choice

Young multicelled organisms usually start out small, then grow in size and increase in complexity. This process is called

• A)reproduction.
• B)heredity.
• C)development.
• D)evolution.
• E)metabolism.

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Definitions:

Aquatic Zone

Areas of water, either fresh or salt, that are home to a wide variety of plant and animal life, segmented into different habitats like lakes, rivers, and oceans.

Benthic Zone

The ecological region at the lowest level of a body of water including the sediment surface and some sub-surface layers.

Bathyal Zone

A marine environment zone that extends from the edge of the continental shelf down to about 4,000 meters, known for its limited light and considerable pressure.

Abyssal Zone

A deep-sea region lying between 3,000 and 6,000 meters below the ocean surface, characterized by cold temperatures, high pressure, and complete darkness.