Invertebrate Animal Vocabulary Flashcards
(23 cards)
Vertebrates
An organism that has a backbone.
Invertebrates
An organism that doesn’t 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 that contains the internal organs.
Bilateral Symmetry
A body that is the same on all sides.
Radial Symmetry
A body that is different on all sides.
Asymmetry
A body that is not organized around a center.
Sponges
An asymmetry body that allows water into its cavities tho get food and oxygen.
Cnidarians
an aquatic invertebrate animal, which comprises the coelenterates.
Flatworms
A phylum of simple soft-bodied invertebrate animals.
Roundworms
A diverse animal phylum inhabiting a broad range of environments.
Mollusks
A soft unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.
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
A large phylum, with over 22,000 extant species, earthworms, and leeches.
Exoskeleton
A hard, external, supporting structure.
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 touch, taste, or smell.
Metamorphosis
A phase in the life cycle of many animals during which a rapid change from the immature form of an organism to the adult form takes place.
Endoskeleton
An internal skeleton made of bone or cartilage.
Water vascular system
A system of canals filled with a watery fluid that circulates throughout the body of an echinoderm.
