Question

if the Large Piscivorous Fish were to decrease drastically how would this affect the tertiary consumers?
Responses
A The osprey population size would increase because the osprey can find another source of food quickly in the food web shown.The osprey population size would increase because the osprey can find another source of food quickly in the food web shown.
B The bald eagle population size would decrease because the bald eagle relies solely on the piscivorous fish in the food web shown.The bald eagle population size would decrease because the bald eagle relies solely on the piscivorous fish in the food web shown.
C The osprey population size would decrease because the piscivorous fish is the only source of food for the osprey in the food web shown.The osprey population size would decrease because the piscivorous fish is the only source of food for the osprey in the food web shown.
D The bald eagle population size would stay constant because the bald eagle does not rely on the piscivorous fish in the food web shown.The bald eagle population size would stay constant because the bald eagle does not rely on the piscivorous fish in the food web shown.

Answer 1

C

If the large piscivorous fish decline drastically, a tertiary consumer that depends on them as its only food source (the osprey in this food web) would lose its food supply, so its population would decrease due to starvation and reduced reproduction.