Word Definition

Photosynthesis

-Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be later released to fuel the organisms' activities.

Chlorophyll

-Chlorophyll is a green pigment found in cyanobacteria and the chloroplasts of algae and plants.

Producer

-Plants are the first level in the food chain or food webs and are known as primary producers.

Consumer

-Consumers are organisms of an ecological food cha that receive energy by consuming other organisms.

Decomposer

-Decomposers or saprotrophs are organisms that break down dead or decaying organisms, and in doing so carry out the natural process of decomposition.

Respiration

-Respiration is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction.

Nitrogen Cycle

-The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms.

Oxygen Cycle

-The oxygen cycle is the biogeochemical cycle that describes the movement of oxygen.

Oxygen

-Oxygen is a chemical element with symbol O and atomic number 8.

Nitrogen

-Nitrogen, symbol N, is the chemical element of atomic number seven. At room temperature, it is a gas of diatomic molecules and is colorless and odorless.