One Hypothesis Says That an Extinct Group Called __________ Are

question 15

Multiple Choice

One hypothesis says that an extinct group called __________ are believed to have been the ancestors of ancient amphibians.

• A)chondrichthians
• B)lepidostians
• C)holosteans
• D)chondrosteans
• E)osteolepiforms

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Definitions:

Zygomatic

Pertaining to the zygomatic bone or zygoma, which is a part of the skull that forms the prominence of the cheek.

Lacrimal

Pertaining to tears or the tear system, including glands and ducts involved in tear production and drainage.

Ethmoid

A porous bone located between the eyes and forming part of the nasal cavities, contributing to the structure of the face and protection of the brain.

Sacral Hiatus

An opening at the base of the spine in the sacral bone, through which nerves and membranes can pass.