Question

below is a food chain from chesapeake bay, an estuary ecosystem in maryland and virginia. images of phytoplankton, bristle worm, silver perch, bottlenose dolphin, bull shark use the information in the food chain to fill in the blank below. options: phytoplankton, bristle worm, silver perch, bottlenose dolphin, bull shark matter first enters this food chain when the blank makes food using photosynthesis.

Explanation:

In a food chain, producers (like phytoplankton) are the first to convert inorganic matter (through photosynthesis) into organic matter (food). They are the entry point of matter and energy into the food chain. Other organisms (bristle - worm, silver perch, bottlenose dolphin, bull shark) are consumers and obtain matter and energy by consuming other organisms.

Answer:

phytoplankton