Quiz - 12.10 Amphibian Structure & Function

An opening in the cloaca allows the _____ and ____ to leave the body.

• food, gametes

• wastes, food

• wastes, carbon dioxide

• wastes, gametes

Amphibian skin contains many mucous-producing glands.

• True

• False

In larval stage, amphibians breathe with the help of _____.

• Lungs

• gills

• Skin

• Mouth

The _____ collects and excretes wastes from the digestive and excretory system.

• Larynx

• BOTH Larynx AND Cloaca

• Cloaca

• None of these

The first vertebrate tetrapods were the ___________.

• bony fish

• reptiles

• amphibians

• lobe-finned fish

Tough, fibrous protein in skin, nails, and hair is _____.

• Keratin

• Collagen

• Chitin

• Heparin

The vertebrates with four legs are known as:

• Arthropods

• Tetrapods

• Hexapods

• None of these

Most amphibians breathe with gills as larvae and with lungs as adults.

• True

• False

All amphibians have:

• digestive and excretory systems

• circulatory and nervous systems

• a reproductive system

• all of these

The height of golden frog is only about 5 centimeters (2 inches) long, but it is the most poisonous vertebrate on Earth. One dose of its toxin can kill up to _____.

• 20 humans

• 100 humans

• 10 humans

• None of these