Question

this diagram shows a food chain from a grassland ecosystem in wyoming. the arrows show how the matter eaten by organisms moves through the food chain. select each organism below that is both a predator and prey in this food chain.

Explanation:

• katydid: Eats slender wheatgrass (prey for katydid) and is eaten by deer mouse (katydid is prey for deer mouse). So it is both predator (to wheatgrass) and prey (to deer mouse).
• deer mouse: Eats katydid (predator to katydid) and is eaten by red - fox (deer mouse is prey for red - fox). So it is both predator (to katydid) and prey (to red - fox).
• red fox: Eats deer mouse (predator to deer mouse) and is eaten by coyote (red fox is prey for coyote). So it is both predator (to deer mouse) and prey (to coyote).

Slender wheatgrass is only a producer (no predator role in this food - chain as it is a plant that gets energy from sunlight through photosynthesis). Coyote is only a predator (top - level predator in this given food - chain with no other organism shown to eat it).

Answer:

katydid, deer mouse, red fox