Energy Flow in Ecosystems Crossword

___ is the main source of energy in most ecosystems
These organisms break down wastes and dead animals.
Every food chain begins with a ___.
___ show the direction of the flow of energy.
An organism that eats another organism.
A food ___ is made up of overlapping food chains.
Which is the producer in this food chain? algae --> minnow --> bass --> heron
Which is an abiotic factor? (plant, bacteria, water, skunk)
Which is a biotic factor? (water, sunlight, rocks, plant)
The process by which green plants make their own food is...