Animal Diversity
The pleural cavity is part of which cavity?
Thoracic
Cnidarians are named for their ________, specialized stinging cells.
cnidocytes
Class ________ is the only truly separate class of amniotes.
Mammalia
Blood is transported away from the heart by the ________.
arteries
What is the term for a hard covering or shell that provides protection and muscle attachment?
Exoskeleton
In the Anthozoa class there are no ________ forms.
medusa
The evolutionary changes from living totally in the water as fishes to living on the land as tetrapods occurred during the ________ period.
Devonian
Gas exchange occurs in the ________.
lower respiratory tract
What is the term for epithelial cells that are composed of multiple layers?
Stratified
The ________ is a hydrozoan with both polypoid and medusoid individuals living as a free-floating colony.
Physalia
Birds evolved from the ________ lineage.
theropod
What type of feedback loop pushes an organism’s physiology further away from its normal set points?
Positive-feedback loop
Which part of the neuron contains the nucleus?
Cell body
________ are epithelial-like cells forming the outermost layer of sponges.
Pinacocytes
In tetrapods, the pharyngeal slits develop into ________.
parts of the ear and tonsils
When you drink excess water, the ________ system is involved in sensing solute and water levels in your body.
cardiovascular
A ________ plane divides a bilateral animal into equal right and left halves.
midsagittal
All chordates share four features ________.
at some stage of development
The jawless fish are a unique group of craniates that lack ________.
paired lateral appendages
Which type of animal maintains a constant internal body temperature?
Endotherm