Organism that eats other organisms for food. Carnivores and herbivores are consumers. An animal with a rigid body covering or exoskeleton and jointed legs, mostly aquatic, ranging in size from microscopic to crayfish, shrimp, and large lobsters. A green pigment in plant cells that is essential to the process of photosynthesis. An organism that break down dead organisms into basic elements.
Bacteria are decomposers.
Bits and pieces of organic matter, plant or animal, found on the ground or on the bottom of a pond. A large, long-bodied insect with narrow, transparent wings often seen around water. Adult dragonflies feed on flying insects, such as mosquitoes. Females lay eggs in ponds and the larvae feed on small aquatic animals. The branch of biology that studies the relations between organisms and their environment.