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BIS 2B Final Exam Questions and Answers (Latest Update 2024)
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BIS 2B Final Exam Questions and Answers (Latest Update 2024)
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BIS 2B Final Exam Questions andAnswers (Latest Update 2024)
Intraspecific - Correct Answer ✅ Interactions between
members of the same species (Individual Interactions).
Interspecific - Correct Answer ✅ Interactions between
individuals from two different species.
-Sources of selection (evolution)
-Determine distribution and abundance of species (ecology)
-Important in determining population regulation - Correct
Answer ✅ Why should we study interspecific interactions?
Competition - Correct Answer ✅ Each species has a
negative effect on the other.
(-,-)
Amensalism - Correct Answer ✅ One species injured but
the interaction, the other is unaffected by the other species.
(-,0)
Predation/Parasitism/Herbivory - Correct Answer ✅ One
species benefits at the cost of another. (+,-)
Commensalism - Correct Answer ✅ One species benefits
and the other is unaffected. (+,0)
-Often refers to mobile associates.
, BIS 2B Final Exam Questions and
Answers (Latest Update 2024)
Facilitation - Correct Answer ✅ One species benefits and
the other is unaffected. (+,0)
-Often refers to sessile associates
Mutualism - Correct Answer ✅ Both species benefit. (+,+)
-Have both costs and benefits, and the outcome is only
mutualistic when benefits outweigh costs for both species.
Obligate Mutualism - Correct Answer ✅ Mutually beneficial
interaction between two species in which each species
REQUIRES the other to persist.
ex: Yucca plant and Yucca Moth
Facultative Mutualism - Correct Answer ✅ Beneficial
interaction between two species in which each species
benefits, but does not require the other to persist.
-More likely to be conditional.
Conditionality - Correct Answer ✅ When outcomes of
species interactions depend on the environment.
Satiation - Correct Answer ✅ Number of prey is so
abundant that predators cannot possibly eat them all.
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