Jaws Are Believed to Have Evolved from the

question 12

Multiple Choice

Jaws are believed to have evolved from the

• A) cranium.
• B) first ribs.
• C) first pair of gill arches.
• D) tooth buds.
• E) suckers of lampreys.

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Definitions:

Nutrient-poor

Environments or substances that lack sufficient quantities of essential nutrients needed to support robust plant or animal growth and health.

Root System

The component of a plant that anchors it to the ground, absorbs water and nutrients, and stores food.

Cone-bearing Trees

Trees that produce seeds in cones, typically evergreens, such as pines and spruces, which are essential to many ecosystems.

Temperate Deciduous Forest

A type of biome characterized by four seasons, including a distinct winter, and trees that shed their leaves annually.