Invertebrate Animal Vocab Flashcards
(23 cards)
Vertebrates
An animal that has a backbone.
Invertebrates
An animal that does not 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
Both sides of the body mirror eachother.
Radial Symmetry
The body is organized around the center.
Asymmetry
The body is not organized around the center.
Sponges
The simplest invertebrates that are asymmetrical.
Cnidarians
A group of invertebrates that have stinging cells.
Flatworms
The simplest type of worm with 3 major classes.
Roundworms
Slim worms that have bilateral symmetry and a simple nervous system.
Mollusks
Snail, clams, slugs, oysters, squids, and octopi.
Open circulatory system
A system in which fluid is not entirely contained.
Closed circulatory system
A system in which the blood is in an enclosed loop.
Annelid worms
Worms with segments.
Exoskeleton
A skeleton that is on the outside of the organism’s body.
Compound eye
An eye that has many light detectors.
Antenna
A feeler that detects touch, taste, or smell.
Metamorphosis
A rapid cycle of the organism growing from immature to adult.
Endoskeleton
An internal skeleton made of bone and cartilage.
Water Vascular System
System of canals filled with fluid.
