11. Which group of organisms can be found in the mangrove ecosysterna
A. mussels, fish, corals
C. butterfly snake bird
B. worm, rat, fish
D. mangrove trees fiddler
crab, fish
12. What are the things needed by plants to make their own toods
A water, chemicals and oxygen
C. oxygen and chemicals
B.
oxygen and carbon dioxide
D. carbon dioxide soil and in
sunlight
13. Which of the following describes a canopy of the rainforesta
A. composed of trees that are 130 to 180 feet tall
B. about 59 feet and consists of trunk of canopy, shrubs, small plants and trees
C. consists mostly of fungi, insects, worms and litter from tailer trees
D. has slender trees from a dense platform of vegetation with 60 to 129 feet.
14. A coral reefs provides for a small fish.
A. Food and shelter
B. Friends
C. Sewage
D. All of the above
15. Coral reefs are endangered by
a. Climate change
c. pollution
b. Overfishing
d. all of the above
II. Identify each statement whether TRUE or FALSE. Write your answer on the
blank.
16. Mammals are warm-blooded animals that are born alive.
17. Reptiles are cold blooded vertebrates that are hatched from
egg.
18. Vertebrates have no economic importance to our environment.
19. There is a significant relationship between vertebrates and
invertebrates.
20. Invertebrate animals are important to human beings.​