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BIO 152 BIOLOGY FINAL EXAM STUDY QUESTIONS AND ACCURATE SOLUTIONS A+ RATED.
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BIO 152 BIOLOGY FINAL EXAM STUDY QUESTIONS AND ACCURATE SOLUTIONS A+ RATED.
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BIO 152 BIOLOGY FINAL EXAM STUDYQUESTIONS AND ACCURATE SOLUTIONS A+
RATED.
If per capita growth rate (sometimes called intrinsic growth rate is 0.50
and there are 500 individuals how many what will the births-deaths
equal?
A. 100
B. 500
C. 250
D. 25
E. Impossible to determine
Verified Answer -C
1,000 people in population. 200 born, 100 die in a given year. What is the
per capita growth rate (what is r)?
A. 90
B. 10
C. 100
D. 0.1
E. Can't determine
Verified Answer -D
Assume your per capita growth rate is 0.2 (per some period of time say a
year) and you have 3000 people, how many will you have in the next
generation (that is what will the population be)?
A. 600
,B. 3200
C. 200
D. 3600
E. It depends on how many deaths there were
Verified Answer -D
If the process continues the graph will look like this: exponential growth
The per capita growth rate is the same thought the slope at any given part
of the curve changes.
What have we assumed here?
A. r is stable
B. Growth over discrete time periods (e.g. year)
C. No deaths
D. Number of births is the same each year
Verified Answer -A&B
If you have an exponentially growing population what will determine the
time it will take for a population to increase from 2 to 2000 individuals?
A. how quickly the value of r increases.
B. The value of N1.
C. The difference between birth rate and death rate divided by the size of
the population.
D. The slope of the exponential growth curve.
Verified Answer -C
You have two populations mole rats one naked the other blind.
, There are 2000 naked mole rats and they have a per capita growth rate of
0.25.
There are 1000 blind mole rats but they have a per capita growth rate of 1
(they're like bunnies). After 2 generations which population will be larger?
A. Naked
B. Blind
C. They'd be the same
Verified Answer -C
But our e. coli experiment doesn't show exponential growth forever. What
happens?
A. The e. coli begin a systematic population control regimen and manage
resources so as to stably support the population.
B. The e. coli have used up all of the resources and have stopped dividing.
C. The number of deaths and the number of division events "births" are
balanced.
D. The e. coli are all dead.
Verified Answer -C
If K is 100,000 and your population is 50,000 what will the difference
between the exponential growth and logistic growth be after 1 year. If r is
0.1 per year (so 10% growth). Assume t=1.
Nt =N1 (1+r)1
Nt =N1 (1+r)1 X (K-N1/K)
A. They'll be about the same
B. The population under logistic growth will be half that of the exponential
population
C. The exponentially growing population will be smaller than the
logistically growing population
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