ASU BIO 182 EXAM 3 UPDATED EXAM
QUESTIONS AND ANSWERS 100%
VERIFIED.
What is a resource? - correct answer
Any substance an organism requires to survive or reproduce. Ex)
food, water, mates shelter, nutrients, oxygen/co2
What factors determine prey choice? - correct answer
Energy content, encounter rate, handling time, search cost
Profitability - correct answer
(energy / handling time)
animals = high profitability
fruits/veggies = low profitability
Why not grow to largest population size possible? - correct
answer
• Many die before having chance to reproduce
• All else being equal, early reproducers leave more decedents.
Earlier you reproduce, the earlier your children can reproduce
Energy budget - correct answer
Maintenance, production, activity
Why is reproduction costly? - correct answer
• Energy for mating, gametes, and parental care
• Exposure to predators & impaired locomotion
, • Missed opportunity to feed & thermoregulate
population - correct answer
group of species living in a given area
Sampling - correct answer
count individuals in a few small areas & extrapolate for the
entire area
Mark & recapture - correct answer
Capture, mark & release individuals. Resample & record
number of marked and unmarked individuals
Why is human population growing exponentially? - correct
answer
Resouces, medicine, sanitation, technology
Competitive exclusion principle - correct answer
species competing for identical resources cannot exist
Niche partitioning - correct answer
niches appear to differ among sympatric species
What happens when you remove a species from a community?
- correct answer
Diversity goes down
QUESTIONS AND ANSWERS 100%
VERIFIED.
What is a resource? - correct answer
Any substance an organism requires to survive or reproduce. Ex)
food, water, mates shelter, nutrients, oxygen/co2
What factors determine prey choice? - correct answer
Energy content, encounter rate, handling time, search cost
Profitability - correct answer
(energy / handling time)
animals = high profitability
fruits/veggies = low profitability
Why not grow to largest population size possible? - correct
answer
• Many die before having chance to reproduce
• All else being equal, early reproducers leave more decedents.
Earlier you reproduce, the earlier your children can reproduce
Energy budget - correct answer
Maintenance, production, activity
Why is reproduction costly? - correct answer
• Energy for mating, gametes, and parental care
• Exposure to predators & impaired locomotion
, • Missed opportunity to feed & thermoregulate
population - correct answer
group of species living in a given area
Sampling - correct answer
count individuals in a few small areas & extrapolate for the
entire area
Mark & recapture - correct answer
Capture, mark & release individuals. Resample & record
number of marked and unmarked individuals
Why is human population growing exponentially? - correct
answer
Resouces, medicine, sanitation, technology
Competitive exclusion principle - correct answer
species competing for identical resources cannot exist
Niche partitioning - correct answer
niches appear to differ among sympatric species
What happens when you remove a species from a community?
- correct answer
Diversity goes down
