tes

photosynthesis

Conversion of light energy from the sun into chemical energy.

areobic respiration

In most cells this energy is released by aerobic respiration which uses oxygen and glucose to produce energy

food web

a complex network of interconnected food chains

primary consumer

consumer that feeds directly on producers

species diversity

describes both the variety of species present in a specific ecosystem and their abundance within that ecosystem

ecological niche

the sum of a species' use of the biotic and abiotic resources in its environment

biodiversity

variety of life on earth

food chain

A series of steps in which organisms transfer energy by eating and being eaten

decomposer

An organism that breaks down wastes and dead organisms

Producer

An organism that can make its own food.