Animal Diversity
Invertebrates
Vertebrates
Body Systems
100

The pleural cavity is part of which cavity?

Thoracic

100

Cnidarians are named for their ________, specialized stinging cells.

cnidocytes

100

Class ________ is the only truly separate class of amniotes.

Mammalia

100

Blood is transported away from the heart by the ________.

arteries

200

What is the term for a hard covering or shell that provides protection and muscle attachment?

Exoskeleton

200

In the Anthozoa class there are no ________ forms.

medusa

200

The evolutionary changes from living totally in the water as fishes to living on the land as tetrapods occurred during the ________ period.

Devonian

200

Gas exchange occurs in the ________.

lower respiratory tract

300

What is the term for epithelial cells that are composed of multiple layers?

Stratified

300

The ________ is a hydrozoan with both polypoid and medusoid individuals living as a free-floating colony.

Physalia

300

Birds evolved from the ________ lineage.

theropod

300

What type of feedback loop pushes an organism’s physiology further away from its normal set points?

Positive-feedback loop

400

Which part of the neuron contains the nucleus?

Cell body

400

________ are epithelial-like cells forming the outermost layer of sponges.

Pinacocytes

400

In tetrapods, the pharyngeal slits develop into ________.

parts of the ear and tonsils

400

When you drink excess water, the ________ system is involved in sensing solute and water levels in your body.

cardiovascular

500

A ________ plane divides a bilateral animal into equal right and left halves.

midsagittal

500

All chordates share four features ________.

at some stage of development

500

The jawless fish are a unique group of craniates that lack ________.

paired lateral appendages

500

Which type of animal maintains a constant internal body temperature?

Endotherm

M
e
n
u