BISC 162 Exam Questions and answers with complete solutions Latest Updated 2025
| Verified
Keystone Species - One species that had a disproportionate effect to where disruption causes
ecosystems to lose function
Species Interactions - Predation, herbivory, parasitism, mutualism, commensalism, ammensalism
Predation - Positive interaction for consumer, negative for prey
Herbivory - Positive interaction for consumer, negative for primary producers
Parasitism - Positive for one, negative for host
Mutualism - Positive interaction for both species
Competition - Both species are negatively effected (ex: both get to eat less)
Commensalism - One species benefits while the other is not affected
Ammensalism - One species is negatively affected with no effect to another
Antagonistic - General interaction in which one species benefits to the detriment of another
Interference Competition - Occurs when two organisms use the same resource
Resource Partitioning - Species use the same resource
Competitive Exclusion - One species goes locally extinct
, Conservation biology - Protects and manages biodiversity
Biodiversity values - Ecosystem function, economic or nutritional value, aesthetic pleasure, research
value, and ethical cost of loss
Biodiversity threats - Exploitation, loss of habitat, invasive species, climate change
Biodiversity preservation - Restoration, captive breeding, habitat protection, disturbance, ecotourism,
reconciliation
Absorptive heterotrophy - Fungal external digestion by enzyme secretion, break down, and absorbing
Yeasts - Unicellular fungi
Saprobes - Fungal decomposers or detritivores
Lichens - Bacteria/green algae + fungi symbiosis
Hyphae - fibers of mycelium
Aposematism - warning coloration to fend off predators
Mimicry - species replicating a trait of another species as a defense mechanism
Metamorphosis - Change of life stages
Sessile - Stage that binds to substrate
| Verified
Keystone Species - One species that had a disproportionate effect to where disruption causes
ecosystems to lose function
Species Interactions - Predation, herbivory, parasitism, mutualism, commensalism, ammensalism
Predation - Positive interaction for consumer, negative for prey
Herbivory - Positive interaction for consumer, negative for primary producers
Parasitism - Positive for one, negative for host
Mutualism - Positive interaction for both species
Competition - Both species are negatively effected (ex: both get to eat less)
Commensalism - One species benefits while the other is not affected
Ammensalism - One species is negatively affected with no effect to another
Antagonistic - General interaction in which one species benefits to the detriment of another
Interference Competition - Occurs when two organisms use the same resource
Resource Partitioning - Species use the same resource
Competitive Exclusion - One species goes locally extinct
, Conservation biology - Protects and manages biodiversity
Biodiversity values - Ecosystem function, economic or nutritional value, aesthetic pleasure, research
value, and ethical cost of loss
Biodiversity threats - Exploitation, loss of habitat, invasive species, climate change
Biodiversity preservation - Restoration, captive breeding, habitat protection, disturbance, ecotourism,
reconciliation
Absorptive heterotrophy - Fungal external digestion by enzyme secretion, break down, and absorbing
Yeasts - Unicellular fungi
Saprobes - Fungal decomposers or detritivores
Lichens - Bacteria/green algae + fungi symbiosis
Hyphae - fibers of mycelium
Aposematism - warning coloration to fend off predators
Mimicry - species replicating a trait of another species as a defense mechanism
Metamorphosis - Change of life stages
Sessile - Stage that binds to substrate
