Animal Attributes
An internal skeleton usually made of bone and cartilage
Endoskeleton
Most animals have _____(#)______ germ layers
three
Type of symmetry found in sponges
asymmetrical
Echinoderms exhibit what type of symmetry?
Radial
The three phyla in the animal kingdom that contain worms are roundworms, flatworms, and ________________
segmented worms
A support structure that depends on water to maintain it's form found in many soft bodied animals. Ex: Jellyfish
Hydroskeleton
Concentration of sensory organs typically found in bilaterally symmetrical animals.
cephalization
Animals can either be mobile or _______ (immobile)
sessile
A mollusk with two shells connected by a hinge.
Bivalves
Type of symmetry found in worms.
bilateral symmetry
Animals without the ability to produce their own food.
heterotroph
Have the ability to regulate body temperature through metabolism.
endothermic animals
Sponges do not have digestive systems, instead they have this structure.
collar cells
This class of mollusks includes land animals
Gastropods
What type of worms include parasitic species?
Roundworms
Animals consisting of a center midline, dividing them into two mirror image halves have what?
bilaterally symmetrical
The outer most germ layer that forms the outer layer of the organisms body
ectoderm
The two forms of cnidarians. Examples include sea anemones and jellyfish.
polyp and medusa
Meaning head foot this class which includes squid and octopi.
Cephalopods
Some worms are termed to be _________________, because they contain both male and female reproductive systems.
hermaphrodites
Ectothermic animals use ________ and environment to maintain an optimum body temperature.
behaviors
The middle germ layer that forms muscle and circulatory systems.
mesoderm
Nerve network found in cnidarians.
nerve net
In echinoderms, what is the purpose of the water vascular system?
Movement, capturing food, circulating nutrients
Sensory organs that send information to the nerve cells of worms is called _____________
ganglia