(04.01 MC) A species of marine snails have either solid or striped shells. Scientists found that 57 percent of the snail population was striped, and 33 percent was solid. Sea birds are the main predator and when scientists studied their diet, they found that the birds ate more striped snails than solid snails. What could scientists conclude about the snails? (3 points)

(04.03 MC) The following illustration shows a food web for a kelp forest off of the coast of California. What do you predict would happen to the kelp population if the sea otter population declined? (3 points) © 2016 CC-BY-SA

(04.04 LC) How can plastics in the ocean impact human health? (3 points)

(04.05 MC) The fur coat of California sea lions can be different shades of brown due to genetic variation. Suppose that the frequency of each fur color changed in a population as shown on the graph below. How do you expect the population trends to change after 2009 if changes in the aquatic environment make dark brown sea lions more reproductively successful than sea lions with light brown coats? (3 points)

(04.01 LC) The shells of a certain species of marine snail are highly variable, with some snail shells being solid colors and others being striped. Which condition of natural selection is this most related to? (3 points)

(04.04 MC) Which of the following is a K-selected species in the ocean and why? (3 points)

(04.05 MC) In the Galapagos islands, the weather causes a variation in algae growth year to year. Marine iguanas eat the algae, and during the years with more algae growth, the marine iguanas lay more eggs. What is the benefit of this overproduction of eggs? (3 points)

(04.05 LC) What is overproduction? (3 points)

(06.03 LC) How can we, as a society of consumers, help fish stay a renewable resource? (3 points)

(04.03 HC) A doctoral student is studying the genetic makeup of a species of jellyfish that occurs at low, middle, and high latitude regions of the Pacific Ocean. On an oceanographic expedition, she collects specimens of the jellyfish throughout its range. Upon returning to the laboratory at the university, an assistant places all of the jellyfish in an aquarium with an average temperature of approximately 20°C. After a few days, he notes that almost two-thirds of the jellyfish have died. Using the figure below, how would you explain which jellyfish likely make up the bulk of the survivors and what the mistake was? (3 points) © 2016 CC-BY-SA