Which law of thermodynamics states that "useful energy in >
useful energy out"?
A. 10th
B. 2nd
C. 3rd
D. 4th
ive been struggling over this please help

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.

What kinds of molecules can pass through the cell membrane without any problem?

Black fur(b) in guinea pigs is dominant over white fur(b). find the probability of a homozygous offspring in a cross: bb x bb. a. 0% b. 25% c. 50% d. 75% e. 100%