BIOL 1001 Introduction to Biology Week 5 Exam questions and answers

BIOL 1001 Introduction to Biology Week 5 Exam The phrase “survival of the fittest” is somewhat misleading because it implies that: 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? 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. Which of the following occurs after the creation of a new allele? 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?