General Biology II Winter 2025 Exam 1 PDF

## General Biology II Winter 2025 Exam 1 **Part I. Multiple Choice (2 points each) Choose the best answer for each question.** 1. You find an animal that is a protostome. It has ____ cell fate and the ____ forms first. * spiral, indeterminate, anus * radial, determinate, anus * **spiral...

## General Biology II Winter 2025 Exam 1 **Part I. Multiple Choice (2 points each) Choose the best answer for each question.** 1. You find an animal that is a protostome. It has ____ cell fate and the ____ forms first. * spiral, indeterminate, anus * radial, determinate, anus * **spiral, determinate, mouth** * radial, indeterminate, mouth cleavage and ____ 2. Survival of some phenotypes compared to others followed by successful reproduction is * heterozygote advantage * **natural selection** * homology * mutation 3. Which of these can create genetic diversity? * asexual reproduction * DNA repair enzymes * sunscreen blocking UV radiation * **independent assortment of chromosomes into gametes** 4. There are about ____ described and named animals. * 50,000 * 1,500,000 * 10,000,000 * **no one knows; it is impossible to determine** 5. Fitness is * **survival of the strongest** * ability to run extremely fast * reproduction of the smartest individuals in the population * spread of one allele relative to another 6. A strong storm happens to destroy all the blue flowers in a population of plant with alleles for both red and blue flowers. The plants with red flowers reproduce and dominate the area. This is an example of * gene flow * random mating * natural selection * **bottleneck effect** * phenotype effect