invertabrate flashcards
vertebrates
an animal that has a backbone
ganglion
a mass of nerve cells
consumer
an organism that eats other organisms or organic matter
coelom
a body cavity that contains the internal organs
open circulatory system
a circulatory system in which the circulatory fluid is not contained entirely within vessels
open circulatory system
a circulatory system in which the circulatory fluid is not contained entirely within vessels
bilateral symmetry
the property of being divisible
radial symmetry
symmetry around a central axis
asymmetry
lack of equivalence between parts of aspects
sponges
member of the phylum porifera
cnidarians
aquatic invertebrate animal of the phylum
flatworms
a phylum of relatively simple billaterian
roundworms
a diverse animal phylum inhabiting a broad range of environments
mollusks
a large phylum that includes snails, slugs, mussels, and octopuses
annelid worms
a large phylum
