invertebrate aniamlas Flashcards
(23 cards)
vertebrates
an aniamal that has a backbone
invertebrates
an animal that dose not have a backbone
consumer
an organism that eats other organisms or organic matter
ganglion
a mass of nerve cells
gut
the digestive tract
coelom
a body cavity tat contains the internal organs
bilateral symmetry
the two sides of its body mirror each other
radial symmetry
body is organized around the center like the spokes of a wheel
Asymmetry
its body is not organized around a center
sponges
simple aquatic aniamals with dense
cnidarians
radially symmetrical soft bodies anaimals
Flatworms
any of a phylum of simple worms lack a body cavity.
Roundworms
parasitic worm that comprise the phylum nematoda.
mollusks
phylum mollusca usually wholly of partly enclosed in a calcium.
open circulatory system
a circulatory system in which the circulatory fluid is not contained entirely within vessels
closed circulatory system
a circulatory system in which the heart circulates blood through a network of blood vessels that form a closed loop.
annelid worms
seqmented worms with a tubular body and a specialized digestive system with a terminal mouth and an anus.
Exoskeleton
rigid or articulated envelope that supports and protects the soft tissues of certain aniamals.
compound eye
an eye composed of many light detectors.
antenna
a feeler that is on the head of an invertebrate such as a crustacean or an insect that senses tough taste or smell
a metamorphosis
a phase in the life cycle of many animals during which a rapid change form the immature from of an organism to adult from takes place .
Endoskeleton
an internal skeleton or supporting framework in an animal
water vascular system
a system of canals filled woth a water sluid that circulates throughout the body of an echinoderm
