Question

A student made this diagram after observing the organisms of a model ecosystem in a large terrarium. Which list of organisms are all consumers in the student's model?

a) Flies, Crickets, Pill bugs
b) Grass, Marigolds
c) Flies, Pill bugs
d) Crickets, Grass, Marigolds

Answer 1

The organisms that are all consumers in the terrarium model ecosystem are Flies, Crickets, and Pill bugs. These are animals that depend on other organisms for food, unlike grass and marigolds, which are producers.

Step-by-step explanation:

The correct list of organisms that are all consumers in the student's model ecosystem is option a) Flies, Crickets, Pill bugs.

Consumers are organisms that cannot produce their own food and must rely on other organisms for nutrients. Flies, crickets, and pill bugs are all animals that eat other organisms. Flies and crickets are often involved in decomposing matter but can also be predatory or parasitic, while pill bugs contribute to the process by breaking down plant material and feeding on decaying matter.

On the other hand, grass and marigolds are producers, as they are plants that create their own food through photosynthesis. They belong to a different category in the ecosystem's food chain. Lastly, the list that includes grass cannot be considered as all consumers since grass is a producer.