Invertebrate/animal vocab Flashcards
An animal that does not have a backbone.
Invertebrates
A mass of nerve cells.
Ganglion
A body cavity that contains the internal organs.
Coelom
A circulatory system in which the circulatory fluid is not contained entirely within vessels.
Open circulatory system
A circulatory system in which the heart circulates blood through a network of blood vessels that form a closed loop.
Closed circulatory system
A hard, external, supporting structure.
Exoskeleton
An eye composed of mainly light detectors.
Compound eye
A feeler that is on the head of an invertebrate, such as a crustacean or an insect, that senses tough, taste, or smell.
Antenna
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.
Metamorphosis
An internal skeleton made of bone or cartilage.
Endoskeleton
A system of canals filled with a watery fluid that circulates throughout the body of an echindoerm.
Water vascular system
An animal that has a backbone.
Vertebrates
An organism that eats other organisms or organic matter.
Consumer
A digestive tract.
Gut
Its body is not organized around the center.
Asymmetry
