Evolution and Ecology - High School Review
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34 Terms
evolution
the change in the heritable traits of a population over generations
natural selection
organisms with traits better suited to their environments survive and reproduce more
mutation
random changes in DNA that can introduce new traits
adaptation
a trait that increases an organism’s fitness
speciation
the formation of new species over time
convergent
unrelated species evolve similar traits
divergent
related species evolve different traits
ecology
ecology is the study of how living organisms interact with each other and their environment
level of organization
organism, population, community, ecosystem, biome, biosphere
energy flow
producers: make their own food via photosynthesis
consumers: eat other organisms
decomposers : break down dead matter
tropic levels: show the flow of energy ( only 10% passed to the next level)
bio geochemical cycles
water cycle, carbon cycle , nitrogen cycle
Predation (interations )
eats one another
competition ( interactions)
organisms fight for recourses
Mutualism ( symbiosis )
both benefit
commensalism ( symbiosis )
one benefits , one harmed
parasitism ( symbiosis)
one benefits, one harmed
primary ( succession )
begins in areas with no soil ( ex after lava flow )
secondary ( succession )
occurs where life existed before
evolution
the change in the heritable traits of a population over generations
natural selection
organisms with traits better suited to their environments survive and reproduce more
mutation
random changes in DNA that can introduce new traits
adaptation
a trait that increases an organism’s fitness
speciation
the formation of new species over time
convergent
unrelated species evolve similar traits
divergent
related species evolve different traits
ecology
ecology is the study of how living organisms interact with each other and their environment
level of organization
organism, population, community, ecosystem, biome, biosphere
energy flow
producers: make their own food via photosynthesis
consumers: eat other organisms
decomposers : break down dead matter
tropic levels: show the flow of energy ( only 10% passed to the next level)
bio geochemical cycles
water cycle, carbon cycle , nitrogen cycle
Predation (interations )
eats one another
competition ( interactions)
organisms fight for recourses
Mutualism ( symbiosis )
both benefit
commensal
one benefits , one harmed
Note 
Flashcards (52)