based on the diagram, which of the following best describes the most likely direct effect of a decline of the small fish population on the marine food web? (a) the jellyfish population will experience local extinction because of a lack of food resources. (b) the jellyfish population will increase because of decreased predation. (c) the jellyfish population will migrate to an area with more available habitat for eggs. (d) the jellyfish population will decrease from the increase in the sea turtle and tuna populations.