A(n) is the amount of heat needed to raise the temperature of one kilogram of water one degree centigrade. a) major element b) amino acid c) calorie

The answer is:  [C]:  "Calorie" .

Note:  The "capital "C";  which means "food calorie".

Awould be the answer

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b