Invertebrate Animal Vocabulary Flashcards
(23 cards)
Vertebrates
backboned animal
Invertebrates
non-backboned animal
Consumer
an organism that eats other organisms or organic matter
Ganglion
a mass of nerve cells
Gut
the digestive tract
Coelom
body cavity that contains the internal organs
Bilateral Symmetry
the same on each side
Radial Symmetry
the body is organized to go around the center
Asymmetry
you can’t draw a straight line down the middle of it
Sponges
simple invertebrates
Cnidarians
they are more complex than sponges
Flatworms
they have a fluid inside them
Roundworms
long slim round like spaghetti
Mollusks
snails slugs clams oysters squids and octopus
Open circulatory system
circulatory system in which circulatory fluid is not contained entirely within vessels
Closed circulatory system
our circulatory system in which the heart circulates blood through a network of blood vessels that forms a closed loop
Annelid worms
often called segmented worms because their bodies have segments
Exoskeleton
hard external supportting structure
Compound eye
an eye composed of many light detectors
Antenna
a sensor
Metamorphosis
a phase in the life cycle of many animals during which a rapid of change from the immature form of an organism adult form takes place
Endoskeleton
an internal skeleton made of bone and cartilage
water vascular system
play System of canals filled with a watery fluid that circulates throughout the body of an echinoderm neither
