Invertabrate Animals Flashcards
Porifera
They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them
Cnidaria
jellyfish, and corals
Annelida
commonly referred to as segmented worms
Hydroid
small predators related to jellyfish
Jellyfish
medusa-phase of certain gelatinous members of the subphylum Medusozoa
Platyhelminthes
group of soft-bodied, usually much flattened invertebrates
Nematoda
or roundworms. They are a diverse animal phylum inhabiting a broad range of environments.
Pinworms
small, thin, pin-shaped worms that sometimes live in the human colon and rectum or called treadworms
Tapeworms
they are ribbonlike worms as adults, known as tapeworms
Bivalves
an aquatic mollusk that has a compressed body enclosed within a hinged shell, such as oysters, clams, mussels, and scallops
Gastropods
a mollusk of the large class Gastropoda, such as a snail, slug, or whelk
Coelomate
have a body cavity called a coelom with a complete lining called peritoneum derived from mesoderm
Acoelomate
an invertebrate lacking a coelom especially : one belonging to the group comprising the flatworms
Radial Symmetry
divided into similar halves
Asymmetry
The lack or absence of symmetry
