i a Flashcards
has a backbone
Vertebrates
without backbone
Invertebrates
an organism that eats other organisms or organic matter
Consumer
mass of nerve cells
Ganglion
the digestive tract.
Gut
a body cavity that contains the internal organs.
Coelom
has two of the same sides.
Bilateral Symmetry
has five sides that are the same.
Radial Symmetry
no sides are the same.
Asymmetry
the simplest animal.
Sponges
have stinging cells.
Cnidarians
the simplest type worms
Flatworms
they are long slime and round.
Roundworms
snails slugs clam and more.
Mollusks
fluid is not contained entirely within vessels.
Open circulatory system
heart circulates the blood.
Closed circulatory system
worms with segments.
Annelid worms
a hard external supporting structure.
Exoskeleton
an eye composed of many light detectors
Compound eye
a feeler that is on the head of an invertebrate
Antenna
a rapid chance of an organism to the adult from takes place.
Metamorphosis
skeleton made of bone or cartilage.
Endoskeleton
is a system of cenels filled with fluid.
Water vascular system
