Question & Answers 2023 VERIFIED
metapopulation correct answers a population of populations connected by migration
replacement rate correct answers average fertility required for each woman to produce exactly enough
offspring to replace her and her offspring's father
community correct answers all species that interact in a certain area
commensalism correct answers (+/0) one species benefits but the other is unaffected
competition correct answers (-/-) individuals use the same resources - lower fitness for both
consumption correct answers (+/-) one organism eats or absorbs nutrients from another
includes
-herbivory
-predation
-parasitism
mutualism correct answers (+/+) both species interact in a way that confers fitness benefits to both
coevolution correct answers a pattern of evolution where two species influence each others adaptations
over time
coevolutionary arms race correct answers repeating cycle of reciprocal adaptation
interspecific competition correct answers individuals from different species use the same limiting
resources
intraspecific competition correct answers competition between members of the same species
-water, space, sunlight, food etc
niche correct answers a range of resources that a species is able to use or the range of conditions it can
tolerate
symmetric competition correct answers a decrease in fitness due to niche overlap - both species are
affected equally
asymmetric competition correct answers occurs when one species suffers a greater fitness decline than
other species
- usually depends on amount of overlap in niche
competitive exclusion principle correct answers two species that occupy the same niche cannot coexist