Solution 01 MC The shells of some marine snails are highly variable with some snail shells being solid and others having stripes Predation by birds is a
Solution MC The shells of some marine snails are highly variable with some snail shells being solid and others having
Solution MC The shells of some marine snails are highly variable with some snail shells
some marine snails are highly variable with some snail shells being solid and others having stripes Predation by birds is a
Solution MC The shells of some marine snails are highly variable with some
snail shells being solid and others having stripes Predation by birds is a
Solution MC The shells of some marine snails are highly
Solution MC The shells of
(Solution) 01 MC) The shells of some marine snails are highly variable, with some snail shells being solid and others having stripes. Predation by birds is a...

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(04.01 MC)The shells of some marine snails are highly variable, with some snail shells being solid and others having stripes. Predation by birds is a major source of mortality for the snails. Scientists studying these snails found that while 47 percent of the snail population was striped, 56 percent of the snails eaten by birds were striped. What could scientists conclude about the snails? The shell pattern is due to genetic variation. The shell pattern is due to environmental variation. Solid snails have little advantage. Solid snails will likely disappear from the population over time.Question 2(Multiple Choice Worth 3 points)(04.02 HC)Consider the production of genetically modified (GM) fish for food. While GM fish can improve nutrition and have economic benefits, people have expressed concerns. Evaluate the arguments below and consider which one is the most effective in addressing concerns that GM fish may harm wild populations if they escape into the wild. GM fish that escape into the wild will likely be harder for fisherman to catch than wild fish. GM fish would not be subject to natural selection if they escape, causing them to reproduce unchecked. GM fish will have difficulty finding food and starve in the wild, creating a large amount of decay and rot in the ocean. GM fish could interbreed with wild-caught fish, changing the genetics of wild populations in unpredictable ways.Question 3(Multiple Choice Worth 3 points)(04.04 MC)Scientists are studying two populations of the same species of sea turtle. One population is much smaller in terms of the number of individuals than the other population. How would genetic factors impact either population and why? Genetic factors would impact the smaller population because it has less genetic diversity. Genetic factors would impact the larger population because it has less genetic diversity. Genetic factors would impact both populations equally because the sea turtles are the same species. Genetic factors would play a limited role in the two populations because they are separate from each other.Question 4(Multiple Choice Worth 3 points)(04.02 LC)How can marine biotechnology most directly impact individual people? By causing an increase in the need for fishing By causing more frequent oil spills By providing new medicines, such as antibiotics from fungi By providing ways to improve ecotourismQuestion 6(Multiple Choice Worth 3 points)(04.05 MC)Natural selection is a fundamental mechanism driving the evolution of species. To research this conclusion, a group of scientists wants to test the effects of increased river salinity on a population of catfish in a river. What result from this experiment would confirm that natural selection is a process that can drive evolution? A transformation of the catfish into a saltwater fish in order to live in the new environment A reduced reproductive success of catfish individuals adapted to the original river salinity A migration of the catfish population to another freshwater environment with lower salt An increase in mutations in the catfish population to accelerate adaptation to the environmentQuestion 7(Multiple Choice Worth 3 points)(04.05 LC)A marine biologist explains that salmon populations change over time because of differential reproduction. What is "differential reproduction"? Some organisms in a population lay eggs, while others produce sperm. Some organisms in a population produce more male offspring than others. Some organisms in a population produce more offspring than others. Some organisms in a population reproduce in rivers, while others stay in the ocean.Question 8(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 coastsQuestion 9(Multiple Choice Worth 3 points)(04.03 LC)Which of the definitions below best defines a mutation? A change in a cell's genetic material The infectious agent that causes disease A substance that increases in concentration with trophic level The influence of human beings on natureQuestion 11(Multiple Choice Worth 3 points)(04.02 MC)Marine biotechnology can be used for cleaning oil spills through biodegradation. What animals do you think would be most directly affected by this? Animals flying over the area Animals living in the sea grass Animals living near the surface Animals living in the mud on the seafloorQuestion 12(Multiple Choice Worth 3 points)(04.04 MC)Which of the following is a K-selected species in the ocean and why? Algae are a K-selected species because they have a very slow growth phase. Algae are a K-selected species because they have a very rapid growth phase. Birds are a K-selected species because they have long life spans. Birds are a K-selected species because they have short life spans.Question 15(Multiple Choice Worth 3 points)(04.01 LC)Which of the following conditions is necessary for natural selection to occur? Each individual organism that is born must survive. More organisms are born than can survive. There must be no mutations among organisms. There must be no variation among organisms.16. Why are predators at the top of the marine food chain more likely to contain more toxins in their bodies? Predators at the top eat more food than other organisms. Predators at the top will breathe in more polluted air. Predators at the top accumulate toxins from organisms they eat. Predators at the top accumulate toxins from themselves.Question 19(Multiple Choice Worth 3 points)(04.03 MC)The blue lobster results from a rare genetic mutation. Imagine that this mutation makes the lobsters more attractive to lobsters of the opposite sex, and thus more likely to breed. How would you describe this mutation? Behavioral mutation Harmful mutation Helpful mutation Neutral mutationQuestion 20(Multiple Choice Worth 3 points)(04.05 LC)What is genetic variation? Each individual in a population has slightly different genes. Some individuals in a population have more genes than others. Each population of a species has slightly different genes. Some populations of a species have more genes than others.Question 21(Multiple Choice Worth 3 points)(04.05 MC)There is a correlation between algae height and the snout-to-vent length of a group of marine iguanas in the Galapagos; as algae height increases for a given island, so does iguana length. Why would the body size of this population of iguanas correlate with algae height? Differential reproduction of larger animals is favored when adequate nutrition is supplied by larger algae. Increased variation in animal size is favored when large plant species are present in a healthy ecosystem. Overproduction of smaller animals is favored when algae swards are short and vice versa when algae swards are long. Traits are exchanged between iguana and algae populations so that taller algae result in larger iguana populations.Question 22(Multiple Choice Worth 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? By allowing for sexual selection of mating partners By ensuring fertilization of only high-quality males By protecting the fertilized eggs from predators By preventing multiple fertilization of the males by other femalesQuestion 23(Multiple Choice Worth 3 points)(04.03 LC)The flesh-eating bacteria, Vibrio vulnificus, destroys healthy tissue. Infectious agents such as this are best classified as what kind of environmental factor? Abiotic environmental Biotic environmental Genetic Pathogenic

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