Invertebrate Animal Vocab Flashcards
an animal that has a backbone
vertebrate
an animal that does not have a backbone
invertebrate
an organism that eats other organisms or organic matter
consumer
a mass of nerve cells
ganglion
the digestive tract
gut
a body cavity that contains the internal organs
coelom
It has equal right and left sides
bilateral symmetry
body organized around the center, like the spokes of a wheel
radial symmetry
It’s body is not organized around a center
asymmetry
creaters that live in the ocean who take in water through spores
sponges
creatures with things on them
Cniderians
worms that are flat
flatworms
worms that can live in many different environments
roundworms
The molluscs compose the large phylum of invertebrate animals known as the Mollusca
mollusks
Vertebrates, and a few invertebrates, have a closed circulatory system
open circulatory system
Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness
closed circulatory system
lso known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.
Annelid worms
is the external skeleton that supports and protects an animal’s body, in contrast to the internal skeleton
Exoskeleton
an eye consisting of an array of numerous small visual units,
compound eye
ither of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods. c
Antenna
A change in the form and often habits of an animal during normal development after the embryonic stage
Metamorphosis
internal skeleton
Endoskeleton
he water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration
water vascular system
