Which of the following is an example of an interaction between the skin and nervous systems? a. the heart beat of a person increasing when he is scared b. the digestion of food and release of energy c. a person feeling hungry or thirsty d. a person feeling the heat of a fire

Is snow a type of precipitation? explain why or why not.

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?