Blog

(04.03 LC) Which of the definitions below best defines biomagnification? (3 points)

(04.01 MC) In sea horses, the female inseminates the male by inserting her oviduct into the male brooding pouch several times to ensure fertilization. After fertilization is complete, the female departs and the male attaches himself to a nearby object, and waits for the eggs to mature. How would this reproductive strategy ensure survival of the species? (3 points)

(04.03 LC) Red tide is so named because of the red color imparted to the water as a result of a population explosion of algae called dinoflagellates. What is another term used by marine scientists to describe such a population explosion? (3 points)

(04.05 MC) In the Galapagos islands, larger iguanas are more successful at reproducing and have more offspring. How would the population change if larger body size also makes iguanas more vulnerable to predatory birds? (3 points)

(04.01 MC) A species of marine snails have either solid or striped shells. Scientists found that 37 percent of the snail population was striped, and 63 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)

(04.04 MC) Juvenile Red Snapper are found close to shore, while adults live in deeper water. An oil rig started seeping oil near the shoreline. What do you predict would be the biggest impact on Red Snapper due to the oil leakage? (3 points)

(04.05 LC) What is natural selection? (3 points)

(04.06 LC) What animals would you likely find in this habitat? (3 points) © 2016 CC-BY-SA

(04.03 MC) What kind of seafood would you expect to have the highest levels of mercury and why? (3 points)

(05.04 LC) What empirical evidence could most effectively and directly be used to convince law makers to remove a dam that is blocking a river used by wild salmon to reach their breeding grounds? (3 points)