7.4 Trophic levels in an ecosystem (biology only)

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Question 1
Easy

A food for pet ferrets contains meat from rabbits.

The food chain is:

Grass⟶Rabbit⟶Ferret\text{Grass} \longrightarrow \text{Rabbit} \longrightarrow \text{Ferret}Grass⟶Rabbit⟶Ferret

a.

What is the trophic level of the ferret?

  • 1
  • 2
  • 3
[1]
b.

Match each organism (Rabbit, Ferret, Grass) to the correct description of its position in this food chain:

  • Descriptions: Herbivore, Producer, Secondary consumer, Tertiary consumer
[2]
c.

Name the chemical process grass uses to produce glucose.

[1]
d.

Some of the rabbit's biomass does not become part of the ferret's biomass. What is one reason why?

  • Some of the rabbit is used for the ferret to grow
  • The ferret produces waste in faeces
  • The grass is eaten by the ferret
[1]
e.

A new ferret food has been developed which is made from mealworms instead of rabbits. In the processing factory, the mealworms are fed on vegetables.

Which of the following describes the correct shape of the pyramid of biomass representing this new food chain (vegetables, mealworms, and ferrets)?

  • A inverted pyramid structure which is narrowest at the bottom and widest at the top.
  • A standard pyramid structure which is widest at the bottom (vegetables), narrower in the middle (mealworms), and narrowest at the top (ferrets).
  • A diamond-like structure which is widest in the middle (mealworms) and narrow at both ends (vegetables and ferrets).
[1]
f.

Beef from cows is also used to make some ferret food. Cows release methane. The company that makes ferret food from mealworms made the statement:

"Ferret food made from mealworms is more sustainable than ferret food made from beef."

Identify two reasons from the list below that support the company's statement:

  • Ferrets will eat more mealworms than beef.
  • Farming cows needs significantly more land than breeding mealworms.
  • Fewer cows being farmed will reduce greenhouse gases and slow down global warming.
  • Fewer mealworms than cows are needed to produce the same mass of ferret food.
  • The food chain for ferret food made from mealworms contains more trophic levels.
[2]

7.4 Trophic levels in an ecosystem (biology only) Questions

  1. GCSE
  2. /Biology
  3. /7.4 Trophic levels in an ecosystem (biology only)