How Did the Development of the Jaw Contribute to Evolutionary

question 36

Multiple Choice

How did the development of the jaw contribute to evolutionary diversification of early vertebrate lineages?

• A)It allowed for more modes of communication.
• B)It allowed vertebrates to grow a bony skull.
• C)It increased their mobility.
• D)It allowed vertebrates to feed on a wider variety of food sources.
• E)It provided for an appreciation of a wider variety of foods.

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Definitions:

Chondroblast

Cartilage-producing cell.

Fibroblast

Spindle-shaped or stellate cells that form connective tissue.

Osteocyte

A mature bone cell encased in bone matrix, playing an essential role in bone maintenance, mineral homeostasis, and repair.

Spongy Bone

A type of bone tissue found at the ends of bones and in the interior of vertebrae, characterized by a porous, lattice-like structure that is lighter and less dense than compact bone.