Julio wants to study the effect of water temperature on the hatching of fish eggs in a lake. which of these experimental designs would be most practical for julio? a. he should put fish eggs in aquariums of lake water kept at different temperatures and observe. b. he should build a computer model of fish eggs in a lake that has many different water temperature settings. c. he should use cameras to observe fish hatching in the lake and temperature probes to monitor water temperature. d. he should take water samples from lakes of different temperatures and observe for eggs and newly hatched fish.