In a pond ecosystem,a crayfish feeds on three species of algae.It in turn is preyed on by one species of fish and a heron.The heron also preys upon the fish.What is the minimum number of food chains in this food web?
A)2
B)3
C)4
D)5
E)6

Question

Quizplus · Accepted Answer

In the food web, there are three algae species, each forming a separate food chain with the crayfish. The crayfish is then preyed upon by the fish and the heron, creating two more chains for each algae species. Additionally, the fish is preyed upon by the heron, adding another chain. Thus, the minimum number of food chains is 3 (algae-crayfish-fish) + 3 (algae-crayfish-heron) = 6.

In a Pond Ecosystem,a Crayfish Feeds on Three Species of Algae.It