Consider the design challenges involved in digging a large hole in the ground to raise fish. Why would it be important for the pond to retain most of its water? What could a fish
farm designer do to reduce or counteract water loss?
PLEASE DON'T GIVE ME LINKS

"a.) well–developed vascular system."

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

the energy generated by an individual's metabolism is calculated in met (metabolic equivalent of task). the met is the ratio of the work metabolic rate to the resting metabolic rate. one met is illustrated as 1 kcal per kilogram per hour, and is probably equal to the energy cost of sitting quietly.

1 met is equal to 1.162 watt per kg

1 kg is equal to 1000 grams

as the person weighs 80000 gm, that is, 80 kg.

therefore, 80*1.162 = 92.96

thus, the person expends 92.96 watts of power while at rest.