I. Choose the correct answer in each number.
______1. The largest group of invertebrates is the arthropod group. What do all arthropods have in common?
A. They live on land and have an exoskeleton.
B. They can fly and have jointed legs.
C. They have segmented bodies and jointed legs.
D. They have skeleton and segmented bodies.
______2. Why do some mollusks have shells?
A. So they can live both on land and water.
B. To make it easier to find food.
C. This as a reason why mollusks have shell.
D. To protect their soft bodies.
______ 3. All of the following are hollow-bodied animals except
A. corals
B. oyster
C. jellyfish
D. sea anemones
______4. All invertebrates are animals that
A. have hard shells
B. have no backbone
C. have hollow bodies
D. live in the ocean
______5. Which of these groups of animals belong to echinoderms?
A. bees, butterfly and mantis
B. sand dollar, starfish and sea urchins
C. earthworm, leeches and tapeworm
D. spider, ticks and scorpion
______6. To what subgroup of arthropods do invertebrates with four pairs of legs belong?
A. echinoderms
B. crustaceans
C. arachnids
D. insect
______7. They are characterized as marine animals with spiny endoskeleton. They have water vascular system, tube feet and radial symmetry as adult. Which group of invertebrates is being described?
A. mollusks
B. echinoderms
C. cnidarians
D. annelids
______8. They have no tissue, no organ, and most have no symmetry.
A. sponges
B. echinoderms
C. cnidarians
D. annelids
______9. Which group of invertebrates is divided into segments with a ringed appearance?
A. sponges
B. echinoderms
C. cnidarians
D. annelids
______10. Animals such as vertebrates and invertebrates have economic importance. They are sources of food, medicine and scientific investigations. How will you show that you care and protect these animals in their environment?
A. We don’t need to strictly implement wildlife regulations.
B. We must have them lived in our houses.
C. We have to establish reserve wildlife refuge areas where birds and animals may breed without being killed by man.
D. Hunting activities must be practiced
11. Which of the following describes the characteristics of poriferans/sponges?
a. Are hollow-bodied or soft-bodied animals
b. Marine animals full of pores or holes
c. Are soft-bodied or shelled animals
d. Are spiny-skinned sea animals.
12. Describes the distinguishing characteristics of Coelenterates/Cnidarians.
a. Are hollow-bodied or soft-bodied animals
b. Marine animals full of pores or holes
c. Are soft-bodied or shelled animals
d. Are spiny-skinned sea animals.
13. Which among the following describes the characteristics of Mollusks?
a. Are hollow-bodied or soft-bodied animals
b. Marine animals full of pores or holes
c. Are soft-bodied or shelled animals
d. Are spiny-skinned sea animals.
14. Which of the following is NOT a characteristics of Arthropods?
a. Joint-legged animals.
b. Largest group in the animal kingdom.
c. Consist of animals called roundworms.
d. Their bodies and legs are made up of sections.
15. Which of the following describes the characteristics of nematodes/ roundworms?
a. Unsegmented worms that have long, thin, round bodies pointed at both ends and are covered by a tough cuticle.
b. They have a thin flat body that resembles a ribbon and have a definite head region and body organs.
c. They have long segmented bodies allow them to burrow in the soil or swim in the water easily.
d. They have no space inside so they have no digestive system.
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Answer:
1.a
2.c
3.d
4.a
5.b
6.b
7.b
8.b
9.c
10.c
11.d
12.a
13.a
14.d
15.c
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Answer:
1. C
2. D
3B
4 B
5 A
6 D
7 B
8 C
9 A
10 D
11 C
12 A
13 B
14 B
15 C