Simple Animals

3. Medusa is generally described as a woman with living snakes in place of hair; her appearance
4. Ascon is a family of authenticated encryption
6. of a plant or invertebrate animal) having the male and female reproductive organs in separate individuals.
8. the study of organisms that live on or in the bottom of a body of water
9. Flagella are hair-like appendages that help organisms move
14. an animal (such as a clam or baleen whale) that obtains its food by filtering organic matter or minute organisms from a current of water that passes through some part of its system
15. the large, central cavity of a sponge that allows water to flow
17. A larva is a distinct juvenile form many animals undergo before metamorphosis into their next life stage.
18. (of a plant) having or developing buds.
20. a large aperture in a sponge through which water is expelled

1. of a plant or invertebrate animal) having both the male
2. an organism that is permanently attached to a solid surface and is unable to move on its own
5. a flexible protein that makes up the fibrous skeleton of most sponges
7. capable of or producing contraction.
10. a minute sharp-pointed object or structure that is typically present in large
11. Ostia was the port city of ancient Rome;
12. an organism that has both male and female reproductive organs, structures, or tissue
13. an abnormal growth of tissue that protrudes from a mucous membrane
16. a term for a diverse group of organisms that float in water and are carried along by currents, rather than actively moving against them
19. a free-swimming, flattened, larval stage of some cnidarians and ctenophores