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competitive exclusion principle
two species cannot occupy the same niche in the same ecosystem for long
the idea that the supply of light, water, or other needs can limit the rate of a process like photosynthesis
growth pattern in which the individuals in a population reproduce at a constant rate
a population that develps in a new environment may begin to grow exponentially, but it soon slows to a linear growth pattern and eventually approaches a stable maximum
exponential growth leads to a period when the population exceeds its carrying capacity, causing the population to decrease rapidly or crash
tropical rain forest
biome near the equator with warm temperatures, wet weather, and lush plant growth
type of vegetation made up of dense forests of shrubs and short trees, common in mediterranean climates
receive less water and are subject to lower temperatures than savannas. North american prairie
temperate deciduous forests
temperate areas, moderate Precipitation, Hot summers, cold winters, soil is rich in organic material
high elevations, harsh winters, short summers, lots of snow, not much water until the spring thaw
the shallow top layer of the ocean where enough light penetrates for photosynthesis to occue
when the web of interaction is so intricate that no more species can fit in it, it has reached a stable equilibrium
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