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16 terms

Science: Sponges, Cnidarians, Worms

Ch. 1, science, 7th grade
STUDY
PLAY
Six kingdoms of organisms
archaebacteria eubacteria protists fungi plants animals
Characteristics shared by all animal
many-celled organisms that must obtain food by eating other organisms, most can move and reproduce sexually
What percentage of animals are invertebrates?
95%
Jellyfish's symmetry
radial
What are the characteristics of a sponge?
filters water, has collar cells, is a heterotroph
Where does a sponge get its food and water?
particles in the water
How does a cnidarian capture prey?
stinging cells
Budding is a form of:
asexual reproduction
How are coral reefs created?
from the skeletons of dead corals
What are the major kinds of worms?
flatworms, roundworms, segmented worms
segmented worm's circulatory system is:
closed
cnidarian body plan: bowl shape=
medusa
cnidarian body plan: vase shape=
polyp
EXample of a medusa:
jellyfish
The body of _______ contains many pores.
sponges
The bodies of ________ are segmented
segmented worms