How does a grassland follow conservation of mass and energy

Babies with very low or very high weight are less likely to survive .

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph