1 Which of the following is TRUE about echinoderms?
a they are stationary
c. they have tentacles which release a poison
b. they have spiny skin
2. How are flatworms and roundworms different from one another?
a they are free living
c. they live as parasites of other animals
b they have one body opening
3. Why are some worms harmful?
a they make children grow healthy
c. they eat dead plants and animals
b they take nutrients from the bodies of other organisms
4. Which of the following is the simplest of the invertebrate groups?
acnidarian
b. roundworms
c. sponges
How are roundworms and flatworms similar?
a. they are non-parasitic
c. they both have one body opening
b they live in bodies of other animals
6 Which group of invertebrates has shells?
a coelenterates
b. echinoderms
c. mollusks
7. How can parasitic worms enter your body?
a eating well-cooked
b. walking barefooted
c. washing your hand before eating
8. How do sponges get their food?
a.they have big mouths to engulf food
c. tentacles push the food into their bodies
b. the pores serves as an entry and exit of food materials
ane met their food?