involved! :) Why is studying animals in the wild considered to be somewhat experimentally "out of control"? A)There are many factors that cannot be controlled that could influence the study.
B)It does not take place in a laboratory and is therefore not a valid experiment.
C)The test subjects are not trained to behave in a certain manner.
D)The experimenters are as careful with recording their results.

Hmmm i tied between A and C because they both seem correct but since C sounds a little off ima say A  

Explanation:

A)

Explanation:

Other answers seem to appear only partially correct or not correct at all. If there's anything unclear, feel free to ask.

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.