Question
3 Look at this food web. Then answer the questions.
fox
heron
frog
small fish
slug
diving
beetle
water fleas
insect
land plants
perch
newt
tiny water
plants
a Name two producers in the food web.
b Name three consumers in the food web.
c Write a food chain from this food web with six trophic levels.
d Name the animals that the small fish eats.
e Name the animals that eat the small fish.
f
Explain what could happen to the community if all the frogs suddenly died.
Answer
a. Land plants and tiny water plants are the producers in the food web.
b. Heron, fox, and perch are the consumers in the food web.
c. Land plants → Slug → Diving beetle → Water fleas → Small fish → Perch
d. The small fish eats water fleas and tiny water plants.
e. The heron and the perch eat the small fish.
f. If all the frogs suddenly died, the population of the animals that eat frogs' prey, such as insects and small fish, could increase. This could lead to a decrease in the population of those prey species and a potential imbalance in the food web.