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ECOLOGY 1

Across
A group of the same individuals- a colony of bats
One factor of climate
The variety of species
Living organisms in an community/ecosystem
Species upon which all others depend
Source of all energy on land
Includes all the living and nonliving parts
Our impact on the environment
Aquatic systems are based on this
Goal of respiration
Network of food chains
Down
One factor of climate
Relation where both organisms benefit
Ex: rocks, water, air, temperature
Often the main decomposer in a food chain
Percent of energy lost from one trophic level to the next
Type of symbiosis
Keystone species in Yellowstone
Percent of sun's energy captured by plants
Ex: parrot fish eating coral
The role of an organism
The biome with least productivity