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Bio 201 Test -Study Questions Solved 100% Correct
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Bio 201 Test -Study Questions Solved100% Correct
Species interaction - Answer -Negative effect on another
species -No effect on another species
-Positive effects on another species
Negative Species Interaction - Answer competition for resources
Interference Competioion - Answer Direct contact and harm onto another
Resource Competition - Answer compete for a shared resource
Indirect Interaction - Answer Mutually negative interaction between 2 species
because they share the same recources
Apparent Competition - Answer To species share a predator
Inter-specific Competition - Answer 2 different species compete for the same resource
,Intra-specific Competition - Answer The same species compete for the same resource
Theories of Interspecific Competition - Answer 1) Competitive Exclusion Principle
2) Partitioning/ Niche
3) Character Displacement
Competitive Exclusion - Answer species that use resource in the same way cannot
coexist
Resource Partitioning - Answer To coexist, species must use resources in different ways
Niche - Answer set of all resources and conditions need for a species to exist
Fundamental: excluding interaction
Realized: including interactions
Character Displacement - Answer Evolution of traits related to the resource used that
demonstrates the partitioning of resources
Exploitive Competition - Answer Consumption of a limiting resource by one
species makes that resource unavailable for consumption by another
Types of exploitive competion - Answer Predation
Herbivory
Parasitism
, Lotka- Volterra Predator - prey Model
(prey) - Answer dN/dt = rN - aNP
N- prey density
P- predator density
a- killing efficiency
Predator - prey Model
(predator) - Answer dP/dt = faNP-dp
f = trophic efficiency (how efficient bio mass is converted to the
population) d= death rate of predators
Mutualisms - Answer Ecological interactions between 2 species in which both benefit
Obligate Mutualism - Answer Require presence of mutualist partner to survive
Facultative Mutualism - Answer Don't require presence of mutualist partner to survive
Resource exchange mutualisms - Answer an exchange of resource between the
2 species
example: obligate plants
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