Invertebrate Animal Vocab Flashcards
(23 cards)
Vertebrates
Animals with backbones
Invertebrates
Animals without backbone
Consumer
Living things that have to hunt, gather and eat their food
Ganglion
A bundle of nerves (replacing a brain in some creatures)
Gut
Stomach
Coelom
A hollow, fluid-filled cavity serving as a skeleton.
Bilateral Symmetry
Could be cut into to equal and identical halves
Radial Symmetry
Symmetry around a central axis
Asymmetry
No symmetry
Sponges
Multicellular organisms that have bodies full of pores and channels allowing water to circulate through them
Cnidarians
soft-bodied stinging animals such as corals, sea anemones, and jellyfish
Flatworms
a group of soft-bodied, usually much flattened invertebrates
Roundworms
small organisms that can live in your intestine, which is part of your digestive system
Mollusks
any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.
Open circulatory system
pumps blood into a cavity called a hemocoel where it surrounds the organs and then returns to the heart(s) through ostia (openings
Closed circulatory system
blood is contained inside blood vessels and circulates unidirectly from the heart around the systemic circulatory route, then returns to the heart again
Annelid worms
annelid, phylum name Annelida, also called segmented worm, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom), movable bristles (or setae), and a body divided into segments by transverse rings, or annulations, from which they take their name.
Exoskeleton
When bugs have a crunchy outside
Compound eye
a visual organ found in arthropods such as insects and crustaceans.
Antenna
The little censors that come out of an animal
Metamorphosis
change of physical form, structure, or substance
Endoskeleton
Skeleton on the inside
Water vascular system
a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration
