Ascientific theory can be defined as a well-supported and widely accepted explanation of nature. according to this definition, which statement describes a scientific theory. a) energy can be neither created nor destroyed. b) f = ma; force equals mass times acceleration. c) for every action, there is an equal and opposite reaction. d) the earth’s magnetic field is generated by a conducting fluid in its core.

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger

hello there the answer is d

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.