I need help with the responses here are the questions and responses.
Question 11(Multiple Choice Worth 3 points)
(04.04 MC)
Which statement best describes how pollution can impact the apex predators of the marine community?
Apex predators are at the bottom of the marine food chain, so accumulation of pollution in their bodies is limited.
Being at the top of the food chain limits how much pollution can be accumulated within the bodies of the apex predators.
The apex predators are impacted by pollution in the environment because they are at the bottom of the marine food chain and accumulate pollution in their bodies.
The apex predators are impacted by pollution in the environment because they are the top of the marine food chain, where accumulation of pollution is quite great.
Question 12(Multiple Choice Worth 3 points)
(04.04 LC)
What is one example of population dynamics that can cause population size to fluctuate?
Birth rates
Ocean depth
Ocean food webs
Organism size average
Question 13(Multiple Choice Worth 3 points)
(04.04 MC)
Female sea turtles return to land after they are mature in order to lay their eggs. Why would female turtles spend more time on land than males?
Tending eggs takes more time than mating.
Fewer predators live on the beach.
Heavy storms wash them ashore.
Mating happens on land.
Question 14(Multiple Choice Worth 3 points)
(04.05 LC)
A marine biologist explains that the salmon adapts to its environment through descent with modification. What is "descent with modification"?
A heritable trait can cause one generation to be slightly different from another.
A learned behavior can be modified by each generation of fish in a population.
An offspring is similar to its parents but has unique features that distinguish it.
A useful adaptation is never passed down from a parent to its offspring.
Question 15(Multiple Choice Worth 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?
The population would be more balanced between small, medium, and large body sizes because while larger iguanas reproduce more, smaller iguanas avoid predators better.
There would be more small iguanas because every large iguana would be eaten.
There would be more large iguanas because being vulnerable to predators would not affect the next generation.
All iguanas would be medium sized, and there would be no variation in body size in the new generations.
Question 16(Multiple Choice Worth 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?
The graph shows the percentage of sea lions with light brown and dark brown fur over a period of 10 years. The X axis shows the year, from 2000 to 2009. The Y axis indicates the percent of the sea lion population from 0 percent to 90 percent. The percentage of sea lions with light brown fur gradually decreases from 85 percent to 62 percent over the 10 year period. The percentage of sea lions with dark brown fur gradually increases from 16 percent to 39 percent over the 10 year period.
The percentage of dark brown sea lions will increase, and the percentage of light brown sea lions will decrease.
The percentage of light brown sea lions will increase, and the percentage of dark brown sea lions will decrease.
The percentage of dark brown sea lions will increase, and the percentage of light brown sea lions will increase.
The percentage of light brown sea lions will decrease, and the percentage of dark brown sea lions will decrease.
Question 17(Multiple Choice Worth 3 points)
(04.05 LC)
What is artificial selection?
The practice of breeding organisms to make them more suited to their environment
The practice of breeding organisms to make them produce more offspring
The practice of breeding organisms with chemical fertilizers and pesticides
The practice of breeding organisms with the most desirable traits to the farmer
Question 18(Multiple Choice Worth 3 points)
(04.05 MC)
A group of scientists wants to test the effects of increased salinity on a population of catfish in a river. What result from this experiment would show natural selection in progress?
An instant transformation of the catfish into a saltwater fish in order to live in the new environment
An increase in the ability of the catfish to tolerate increased salinity levels over several generations
A migration of the catfish population to another freshwater environment with lower salt
Lack of mutations in the catfish population to accelerate adaptation to the environment
Question 19(Multiple Choice Worth 3 points)
(04.06 LC)
Where would the highest density of mangrove forests be found?
Open ocean
Polar regions
Temperature seas
Tropical coasts
Question 20(Multiple Choice Worth 3 points)
(04.06 MC)
The illustration shows the worldwide distribution of killer whales, or orcas. The dark areas indicate regions where the whales are most commonly found. What can be concluded about the distribution of orcas found around the globe?
Map depicts locations worldwide that Killer Whales, also called Orcas, can be found. Darker regions indicate the location. Indications of Orcas are found off the coast of Alaska, the west coast of the United States, Northwest coast of South America, Southeast coast of South America, Southern coast of Africa, West-Northwest coast of Australia, East coast of Asia and Northern Europe and Russia. These locations are spread throughout the world in the Arctic, Atlantic, Indian, Pacific oceans with a higher concentration of darker regions in the Northern hemisphere.
© 2015, KillerWhale.org
Orcas can be found primarily in the tropics.
Orcas inhabit only the coldest waters.
Orcas live in all of the world's oceans.
Orcas primarily swim in the open ocean.
Question 21(Multiple Choice Worth 3 points)
(04.06 MC)
What is the relationship between the distribution of coral polyps and the population density of plankton in the water?
Coral polyp distribution is independent of plankton density because they live in different geographical locations.
If there is a high density of plankton in the water, then there will be a high coral polyp distribution.
If there is a high density of plankton in the water, then there will be a low coral polyp distribution.
The relationship between coral polyp distribution and plankton density is limited because they have different food sources.
Question 11: Being at the top of the food chain limits how much pollution can be accumulated within the bodies of the apex predators.
Question 12: Birth rates
Question 13: Tending eggs takes more time than mating.
Question 14: A heritable trait can cause one generation to be slightly different from another.
Question 15: The population would be more balanced between small, medium, and large body sizes because while larger iguanas reproduce more, smaller iguanas avoid predators better.
Question 16: The percentage of dark brown sea lions will increase, and the percentage of light brown sea lions will decrease.
Question 17: The practice of breeding organisms with the most desirable traits to the farmer.
Question 18: An increase in the ability of the catfish to tolerate increased salinity levels over several generations.
Question 19: Tropical coasts
Question 20: Orcas live in all of the world's oceans.
Question 21: If there is a high density of plankton in the water, then there will be a high coral polyp distribution.