BIOL 1001 WEEK 6 EXAM WITH QUESTIONS AND ANSWERS - KEISER UNIVERSITY.

Status Completed
Attempt 89 out of 90 points
Score
Time Elapsed 1 hour, 40 minutes out of 3 hours
Instructions Please answer each question below and click Submit when you have
completed the Exam.
Results Correct Answers
Displayed
 Question 1
1 out of 1 points
The actual carrying capacity of our planet may be lower than initially calculated because:

Correct d.
Answer: Modern food production relies on nonrenewable
resources

 Question 2
1 out of 1 points
Which statement is false?

Correct b.
Answer: A mutated oncogene is a proto-
oncogene.

 Question 3
1 out of 1 points
How does the rate of extinction today compare to the rates in the past?

Correct e.
Answer: The rate today is about fifty times greater than what it has been, on
average, in the fossil record.

 Question 4
1 out of 1 points
Which of the following variations could be subject to natural selection?
Correct c.
Answers: A hyena is born with a spotted fur pattern that allows it to hide in the
grass better than its littermates.
 Question 5
1 out of 1 points
You are trying to breed a heterozygote Rr rat and want to avoid homozygotes. Which of
the following crosses would be your best choice?
Correct b.
Answers: RR x
rr
 Question 6
1 out of 1 points
Which of the following is NOT true of chromosomes?

, Correct d.
Answer: Larger organisms have larger numbers of
chromosomes.

 Question 7
1 out of 1 points
Which of the following is NOT likely to be an example of an evolutionary change in a
population?

Correct b.
Answer: An increase in the number of people diagnosed with
colon cancer

 Question 8
1 out of 1 points
During cellular respiration, glucose is metabolized into the low-energy compounds carbon
dioxide and water, while the rest of the energy released goes where?

Correct a.
Answer: Into
ATP

 Question 9
1 out of 1 points
Which of the following is not a way in which fossil evidence supports the theory of
common descent? The fossil record:

Correct a.
Answer: Typically contains many complete bodies, so they are
easy to classify

 Question 10
1 out of 1 points
Evidence for evolution includes:

Correct e.
Answer: All of the
above

 Question 11
1 out of 1 points
What would happen if a mutation created a new allele that decreased fitness?

Correct e.
Answer: The new allele would decrease the fitness of the individual that
possessed it, and that individual would have few or no offspring.

 Question 12
1 out of 1 points
Consider an experiment in which subjects are given a pill to test its effectiveness on
reducing the duration of a cold. Which of the following is the best way to treat the control
group? (Choose the best answer.)

Correct e.