What will happen if key species that drive major ecosystem functions are lost?
A. No threat to the ecosystem
B. Serious threat to the safety of the ecosystem
C. Little threat to the ecosystem
D. Ecosystem remains unchanged
Answer:B
What will happen if key species that drive major ecosystem functions are lost?
A. No threat to the ecosystem B. Serious threat to the safety of the ecosystem C. Little threat to the ecosystem D. Ecosystem remains unchanged