An ectothermic organism would have the advantage over an endothermic organism when .

Explanation:

Ectotherm, called cold-blooded animals, whose regulation of body temperature depends on external sources, such as sunlight or any  other environmental source.

Example of  Ectotherm are:  fishes, amphibians, reptiles, and invertebrates.

Endotherm -called warm-blooded animals; those maintain a constant body temperature independent of the environment.

Example of endotherms ;  include the birds and mammals and some fish are also endothermic.

Costs and Benefits of Endothermy

By Increasing the rate of metabolism is especially energy intensive. As a result, endothermic animals typically need more food than ectothermic animals.

for the points

because the light is a great source of energy for the plants to survive. (i hope this )