6. Which of the following invertebrates have segmented bodies and tough exoskeleton with jointed
appendages.
a. Mollusks
b. Arthropods
C. Annelids
d. Nematodes
7. It is a hard skeleton that provides framework for support and protects soft body tissue.
a. Exoskeleton
b. Abdomen
c. Thorax
d. Antennae
8. Which of the following does not belong to the group?
a. Butterfly
b. Scorpion
c. Spider
d. Mites
9. Ants, mosquitos, bees, and bugs are example of
a. Crustaceans
b. Centipedes
?
c. Insects
d. Arachnids
10. Which group of invertebrates has soft body which is protected by a hard covering or shell?
spia. Porifera
b. Molluska
c. Platyhelminthes d. Cnidaria
11. It is a area in warm coastal region where mangrove trees are found.
a. Tropical rain forest b. Mangrove swamp c. Mangrove Island
d. Desert region
d. alkaline water
12. It is a water that composed of salt water and fresh water.
a. tap water
b. mineral water c. blackish water
13. The following are example of biotic component except?
a. water
b. plants
c. animals
d. micro organism