What would increase the rate of heat exchange between an animal and its environment?

rate of heat exchange the animal and its environment. Feathers, vasoconstriction, Countercurrent heat exchanger and blubber are all mechanisms which restrict the transfer of heat from the animal body

Explanation:

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

i don't understand is there any other way you can rephrase it plz let me know in the comments and i will do it.

explanation: