Chapter 3 Test Flashcards
(23 cards)
limiting factors
biotic and abiotic factors that can control where something can live
limiting biotic factors
predators and food
limiting abiotic factors
mainly weather (rain, temp, sunlight, etc.)
range of tolerance
limits that define conditions in which organisms can live
population outside the range of tolerance
population is 0 (intolerance)
determine the range of tolerance
limiting factors
population outside the range of tolerance
0
what is it called outside the range of tolerance
intolerance
middle of the tolerance zone
optimum zone
which part of the tolerance zone has the highest population
optimum zone
far sides of the tolerance zone
stress
which part of the tolerance zone has low population
stress zone
changes in the ecosystem over time
ecological succession
what is another name for primary succession?
pioneer stage
what is primary succession dealing with?
starting to make rocks and making soil
What makes soil?
water erosion and lichens (nutrients)
What is another name for secondary succession?
intermediate stages
how fast is secondary succession?
faster than primary succession
what happens in secondary succession?
annual plants and grasses start to grow
what happens in a mature community?
shade tolerant trees start to take form
what determines biomes??
average temp., average precipitation, and plants
why don’t animals define a biome?
because they can migrate depending on their limiting factors
besides latitude, what can determine a biome?
altitude
