C190 Pre-Assessment Questions And Answers Already Graded A+

Which item would be classified as biotic? -light -wind -temperature -fungus - Answer fungus Which item is an atom? -carbon dioxide -nitrogen -sucrose -methane - Answer nitrogen Largemouth bass have recently been introduced into ponds that previously did not contain any large, predatory fish. Which adaptation would help the existing population of small, prey species of fish avoid predation from the largemouth bass? -fins with smaller surface areas -faster average swim speed -more noticeable body coloration -more time actively foraging for food each day - Answer faster average swim speed Western spadefoot toads breed and deposit their fertilized eggs in small, often short-lived ponds. The tadpoles grow in the ponds for a period of time before undergoing a metamorphosis into an adult frog. One unusual characteristic of spadefoot tadpoles is the ability to change body form during development.Normally most tadpoles are herbivorous and feed on plant material. However, when conditions in the ponds suggest they are beginning to dry up (e.g., an increase in water temperature or concen - Answer Spadefoot toads would likely evolve to have a higher percentage of toads become carnivorous. Male peacocks compete with one another to mate female peacocks. Males with more colorful tail feathers attract female mates at a higher rate than those without. Therefore, male peacocks have colorful tail feathers, whereas female peacocks do not. What is this an example of? -sexual selection -artificial selection -gene flow -genetic drift - Answer sexual selection