Chapter 5 Test Worksheet

process by which plants, algae, & some bacteria use sunlight, carbon dioxide, & water to produce carbohydrates & oxygen
eat only animals
another name for consumers
give you energy to carry out daily activities
another name for producers
gradual process of change & replacement of the types of species in a community
a consumer that eats another consumer
process of breaking down food to yield energy
one of the steps in a food chain or food pyramid
movement of carbon from the nonliving environment into living things and back
releases carbon into the atmosphere when burned by humans
type of bacteria that convert atmospheric nitrogen into ammonia
the movement of phosphorus in different chemical forms from the environment to organisms and back
increase in the temperature of the Earth
eat only plants
make their own food
a sequence in which energy is transferred from one organism to the next as each organism eats another organism
occurs on a surface where no ecosystem existed before
a consumer that eats a producer to get energy
shows many possible feeding relationships in an ecosystem
process in which nitrogen circulates among the air, soil, water, plants, and animals in an ecosystem
element that is part of many molecules that make up the cells of living organisms
break down & eat dead organic matter
used by plants to make sugar molecules
occurs on a surface where an ecosystem previously existed
eat both plants & animals