animal vocab Flashcards
vertabrate
an animal with a backbone
invertebrate
animal without a backbone
consumer
something that eats something
gangilon
a large amounts of nerves
gut
a scientific term for belly
ceolom
were your intestines go
bilateral symmetry
perfect symmetry
radial symmetry
a slight amount of symmetry
asymmetry
lack of equality or equivalence between parts or aspects of something; lack of symmetry.
sponges
a primitive sedentary aquatic invertebrate with a soft porous body that is typically supported by a framework of fibers or calcareous or glassy spicules. Sponges draw in a current of water to extract nutrients and oxygen.
2.
a piece of a soft, light, porous substance originally consisting of the fibrous skeleton of an invertebrate but now usually made of synthetic material. Sponges absorb liquid and are used for washing and cleaning.
Cnidarians
an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.
Flatworms
a worm of a phylum that includes the planarians together with the parasitic flukes and tapeworms. They are distinguished by having a simple flattened body that lacks blood vessels, and a digestive tract that, if present, has a single opening.
Roundworms
a nematode, especially a parasitic one found in the intestines of mammals.
mollusks
an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.
Open circulatory system
Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
