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Science Vocabulary #15 - Modified

Across
Factors are the living parts of an ecosystem.
Is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.
Are powerful indirect interactions that can control entire ecosystems, occurring when predators in a food web suppress the abundance or alter the behavior of their prey, thereby releasing the next lower trophic level from predation.
An organism that generally obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food; a heterotroph.
Organisms that make their own food; they are also known as autotrophs. They get energy from chemicals or the sun, and with the help of water, convert that energy into useable energy in the form of sugar, or food.
Down
A factor present in an environment that controls a process. In particular, it refers to the factor that limits growth, abundance, and distribution of a population of organisms in an ecosystem.
An organism that decomposes, or breaks down, organic material such as the remains of dead organisms.
Factors are non-living factors in an ecosystem.