Harvey is studying the turtles that live in a pond. his knowledge of ecology will be most useful for explaining which of these observations of the turtle a. the shell of the turtle appears to be an extension of it's spine b. a female turtle lays a clutch of eggs along the shore of the lake, and not in the water. c. one summer, the size of the turtle population suddenly increases, but then gradually decreases. d. a turtle may remain underwater for several minutes, but then surfaces for at least a brief moment.

So whats the answer. My best logical guess is D. Why would the turtle have to go above the water. If their living in a pond, then studying them above water makes no sense. So it's most useful if they are remaining underwater for many minutes at a time then reach for the surface, so that's the answer most likely, but i have no idea.

So... D. A turtle may remain underwater for several minutes, but then surfaces for at least a brief moment.

C; one summer, the size of the turtle population suddenly increases, but then gradually decreases.

Explanation:

Knowing his ecology of the community he is observing the turtles and how they survive in the pond, he sees that they fluctuate that is why it is c

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

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation: