BIOL 1001 WEEK 5 EXAM WITH ANSWERS ( LATEST UPDATE )

BIOL 1001 WEEK 5 EXAM WITH ANSWERS User Course BIOL-1001P-8/BIOL-1001L-8/BIOL-1001-8-Introduction to Biology2017 Spring Qtr 02/27- 05/21-PT5 Test Exam - Week 5 Started 5/11/17 6:43 AM Submitted 5/11/17 7:01 AM Due Date 5/15/17 1:59 AM Status Completed Attempt Score 50 out of 50 points Time Elapsed 18 minutes out of 1 hour and 30 minutes Instructions Please answer each question below and click Submit when you have completed the Exam. Results Correct Answers Displayed Question 1 3 out of 3 points The phrase “survival of the fittest” is somewhat misleading because it implies that: Correct Answer: c. The best possible organism will evolve Question 2 3 out of 3 points Choose the best answer. The logic of natural selection predicts that a population of organisms will undergo evolution if, and only if, which of the following condition(s) exist? Correct Answer: d. Both b and c. Question 3 2 out of 2 points Your friend was diagnosed with strep throat 2 months ago. She was treated with antibiotics for 10 days, but 2 weeks after treatment, the symptoms returned. She was given a different antibiotic, and her symptoms again initially improved but then got worse. What is happening? Choose the best answer. Correct Answer: d. Your friend was originally infected with bacteria that are resistant to at least two antibiotics. his study source was downloaded by from CourseH on :19:11 GMT -05:00 Question 4 2 out of 2 points Which of the following occurs after the creation of a new allele? Correct Answer: a. The gene pool becomes more diverse. Question 5 2 out of 2 points A biologist has been studying two populations of trout in Montana for the last 25 years, when the two populations were established from one common population. In the southern population, the fish now have a slightly different mouth shape. But the northern population hasn’t changed from the original type. The new shape works well in catching the type of prey common in the habitat of the southern population. Which explanation is the most likely explanation of the gene differences in the two populations? Correct b. Answer: The gene that produces the variation is probably still present in a small percentage of the northern population, but since there’s no advantage to having it, individuals with the variation aren’t preferentially selected.