Why should fishery managers not view cod stocks as separate from other fish stocks such as capelin and mackerel? a. these fish species all form schools together and are therefore caught together. b. capelin and mackerel both compete with cod for ocean floor habitat. c. these populations of these fish species are all related through the ocean food web. d. there is no reason for fishery managers not to view cod stocks individually.

The correct answer is - c. These populations of these fish species are all related through the ocean food web.

The cod, capelin, and mackerel are all fish species that are connected to each other through the food web. They all live in the same environment, and are participants in the same food chain.

Because of that, the fishery managers have to be careful while fishing those species, because if they cause some bigger imbalance in the numbers of one of them, compared to numbers of the other two, it will make big problems in the food chain. Such problem can result in the dying out of some of them, while a significant increase of the others, which will not be good neither for the ecosystem, nor for the fishery managers.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

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