invertebrate Flashcards
(23 cards)
invertebrates
an animal that does not have a backbone
vertebrates
an animal with a backbone
consumer
animals that eat what comes to them
ganglion
a mass of nerve cells
gut
the digestive tract
coelom
a body cavity that contains organs
bilateral symmetry
being divisible into symmetrical halves
radial symmetry
symmetry around a central access
asymmetry
lack of symmetry
sponges
animals that live in water
cnidarians
an aquatic invertebrate
flatworms
an aquatic worm
roundworms
a parasitic worm
mollusks
an animal family that has shelled and squishy invertebrates
open circulatory system
a circulatory system in which the fluid is not contained
closed circulatory system
a circulatory system in which the fluid is contained
annelid worms
ringed worms
exoskeleton
the external skeleton
compound eye
an insect eye that is made of separate visual units
antenna
an insect organ that senses stuff
metamorphosis
a change of the form or nature of a thing or person
endoskeleton
an internal skeleton
water vascular system
a network of water vessels in the body
