Question

photosynthesis.
matter first enters this food chain when the makes its own food using
use the information in the food chain to fill in the blank below.
crabgrass
field cricket
rough green snake
bald eagle
below is a food chain from a forest ecosystem in virginia.
crabgrass
field cricket
rough green snake
bald eagle

Explanation:

In a food chain, matter first enters when the producer (an organism that makes its own food) uses photosynthesis. Crabgrass is a plant (producer) that can perform photosynthesis.

Answer:

crabgrass