Ecology Cycles
Phosphorus Cycle, Carbon Cycle, & Nitrogen Cycle
The Phosphorus Cycle
The Phosphorus Cycle - the movement of phosphorus from the environment to organisms and then back to the environment
- this cycle is slow and does not usually occur in the atmosphere because phosphorus rarely occurs as a gas
Phosphorus - an element that is part of many molecules that make up the cells of living organisms.
The Carbon Cycle
The Carbon Cycle - a process by which carbon is cycled between the atmosphere, land, water, and organisms.
Carbon -
- enters a long-term cycle
- may be converted in carbonates
Phosphorus Cycle
Phosphorus moves from phosphate deposits in rock to the land, then to living organisms, and finally the ocean.
Nitrogen Cycle
Nitrogen could not be cycled in the atmosphere without nitrogen-fixing bacteria.
Carbon Cycle
Carbon exists in air, water, soil and living organisms.
The Nitrogen Cycle
The Nitrogen Cycle - a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms.
Nitrogen-Fixing Bacteria - a few species of bacteria that are the only organisms that can fix atmospheric nitrogen into chemical compounds.