7.4 Trophic levels in an ecosystem (biology only)

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Question 7
Medium

An aquatic food chain is shown below:

Algae→Daphnia→Minnow\text{Algae} \rightarrow \text{Daphnia} \rightarrow \text{Minnow}Algae→Daphnia→Minnow

a.

State the ultimate source of energy for the Algae in this food chain.

[1]
b.

For each of the three organisms in the food chain, identify all appropriate terms from the list below that describe their feeding relationship:

  • Producer
  • Primary consumer
  • Secondary consumer
  • Herbivore
  • Carnivore
[3]
c.

When the Daphnia eats the Algae, about 90%90\%90% of the biomass is lost. State two ways in which this biomass is lost between these trophic levels.

[2]

7.4 Trophic levels in an ecosystem (biology only) Questions

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