Question

match the following terms with the appropriate description.

1. ___ choanocytes
2. ___ mesoglea
3. ___ flagellum
4. ___ planula
5. ___ spongocoel
6. ___ medusa
7. ___ epitheliomuscular
8. ___ osculum
9. ___ pinacocytes
10. ___ nematocytes
11. ___ spicules
12. ___ polyp
13. ___ toxins and spicule
14. ___ amoebocytes

a. cells that line the outer surface of a sponge and may change its shape
b. cell that filters microscopic food particles
c. cells contain muscle fibers
d. skeleton, needle like spikes made of calcium carbonate
e. bell with tentacles facing down
f. gel in between two tissue layers
g. stinging cells
h. take digested food particles and transport throughout sponge.
i. what sponges use to protect themselves, response.
j. diploid cell becomes a polyp
k. tube with tentacles facing up
l. from where water exits a sponge
m. allows water and nutrients to flow into sponge
n. creates water currents

place the proper letter from the image above beside each stage of the cnidarian life cycle.

1. ___ planula
2. ___ medusa
3. ___ polyp

Explanation:

Answer:

1. B. Cell that filters microscopic food particles
2. F. Gel in between two tissue layers
3. N. Creates water currents
4. J. Diploid cell becomes a polyp
5. M. Allows water and nutrients to flow into sponge
6. E. Bell with tentacles facing down
7. C. Cells contain muscle fibers
8. L. From where water exits a sponge
9. A. Cells that line the outer surface of a sponge and may change its shape
10. G. Stinging cells
11. D. Skeleton, needle like spikes made of calcium carbonate
12. K. Tube with tentacles facing up
13. I. What sponges use to protect themselves, response.
14. H. Take digested food particles and transport throughout sponge.
15. B
16. A
17. C