Answer:
A biome is a group of ecosystems with the same climate
Explanation:
I think A but not sure rly
The same day an event occurs or a vulnerability is discovered.
Answer:
Estimated size is 1600
Explanation:
Given data:
Size of lake is 250 hectares
Total number of trout who netted is 400
Total number of trout in next week is 200
Total number of trout having fin clip 50
estimation population size is estimated by mark rupture as follow
Estimated population size 
Estimated size
Estimated size is 1600