Question

a producer is the organism at the base, or beginning, of a food chain. many producers use photosynthesis to make their own food. this food becomes the matter that moves up the food chain.
phytoplankton bristle worm silver perch bottlenose dolphin bull shark
use the information in the food chain to fill in the blanks below.
matter moves up the food chain when prey is eaten by a predator. in this food chain, matter moves from prey to a predator when the bristle worm is eaten by the ____. matter moves closer to the top of this food chain when another predator, the ____, eats its prey, the silver perch.

Explanation:

Step1: Identify predator - prey relationships

In a food chain, when one organism (prey) is eaten by another (predator), matter is transferred. Given that the bristle worm is eaten, we look for its predator in the food chain. The silver perch is the next in line after the bristle worm.

Step2: Identify the predator of silver perch

We need to find the organism that eats the silver perch. Looking at the food - chain sequence: phytoplankton → bristle worm → silver perch → bottlenose dolphin → bull shark. The bottlenose dolphin eats the silver perch.

Answer:

Matter moves from prey to a predator when the bristle worm is eaten by the silver perch. Matter moves closer to the top of this food chain when another predator, the bottlenose dolphin, eats its prey, the silver perch.