Question

which list of organisms consists of only consumers?

a. mango tree, deer, giraffe

b. grass, parrot, lion

c. mulberry shrub, grass, cow

d. eagle, salamander, hen

Explanation:

To determine which list has only consumers, we recall that consumers are organisms that cannot make their own food (heterotrophs), while producers (autotrophs) make food (e.g., plants).

• Option A: Mango tree is a producer (plant), deer and giraffe are consumers. So A has a producer.
• Option B: Grass is a producer, parrot and lion are consumers. So B has a producer.
• Option C: Mulberry shrub and grass are producers, cow is a consumer. So C has producers.
• Option D: Eagle, salamander, and hen are all consumers (they eat other organisms; none are plants/producers).

Answer:

D. eagle, salamander, hen