16. Which of the following is NOT a factor that can limit population growth?
a) Food availability
b) Water availability
c) Disease
d) Predation
Answer: d
17. Which of the following is an example of a keystone species?
a) Wolf
b) Deer
c) Grasshopper
d) None of the above
Answer: a
18. Which of the following is an example of a renewable resource?
a) Coal
b) Oil
c) Solar energy
d) Natural gas
Answer: c
19. Which of the following is NOT a type of renewable energy?
a) Wind power
b) Solar power
c) Nuclear power
d) Hydroelectric power
Answer: c
20. What is the term for the gradual change in species composition in a community over time?
a) Succession
b) Evolution
c) Adaptation
d) None of the above
Answer: a
