Modern Home Decorating

1. The stinging cells found on the tentacles of the cnidarians are called
polyp
medusa
nematocysts
collar cells

2. What is the function of the osculum?
to use its flagella to move the water
to let water into the sponge
to open at the top and allow water to leave
It is the area in the center of the sponge.

3. Invertebrates don’t have a
brain
backbone
mouth
stomach

4. Phylum Porifera includes what animals?
sponges
jellyfish
flatworms
roundworms

5. The Platyhelminthes phylum are animals that are
round with arms
flatworm-like
jellyfish-shaped
scale-like snakes

6. What is a complete digestive system?
having a mouth but no anus
having a mouth and an anus
having no mouth but having an anus
having no mouth or anus

7. What is the largest group of animals?
insects
spiders
crustaceans
vertebrates

8. What animals are in the bivalve class?
snails
slugs
clams
octopuses

9. What is the part of the mollusks that is a layer of tissue that secretes the shell?
foot
shell
visceral mass
mantle

10. Leeches are important in
breaking down waste material
producing oxygen
reattachment of ears
causing blood to clot

11. Which of the following structures do all arthropods not have?
jointed appendages
an exoskeleton
a segmented body
antennae

12. Which of the following parts of the sponge is used to allow water to flow into the sponge?
osculum
collar cell
pore cell
central cavity

13. Which of the following is not a cnidarian?
sponge
jellyfish
hydra
sea anemones

14. Which of the following is not a benefit of coral and coral reefs?
reduce beach erosion
clean bodies
decorate homes
habitat for fish

15. The Portuguese man-of-war is a
jellyfish
sea anemone
porifera
hydra

16. Which of the following is not bilaterally symmetric?
earthworm
roundworm
sponges
mollusks

17. The part of mollusks that functions for feeding is the
foot
shell
visceral mass
mantle

18. Which of the following is not a class of Mollusks?
gastropoda
bivalvia
crustacea
cephalopoda

19. What does echinoderm mean?
has an outer skeleton
has a head, tail, front, back, and left and right.
has both a mouth and anus
has a spiny skin

1. nematocysts
2. let water into sponge
3. backbone
4. sponges
5. flatworm
6. have mouth and anus
7. insects
8. clams
9. mantle
10. causing blood to clot
11. antennae
12. osculum
13. sponge
14. decorate homes
15. jellyfish
16. sponges
17. foot
18. crustacea
19. spiny skin