I think it would be the second one because some think that there is enough evidence and some do not.
1. Testing only one variable
A controlled variable means its the one that stays the same. In a controlled experiment, it means there is only one manipulated, (changed) variable.
Humans store excess polysaccharides in the form of glycogen.
Polysaccharides are carbohydrates. They are generally used to generate energy in the form of ATP for the body's metabolic activities.
Carbohydrates are broken down during respiration to generate energy. Excess carbohydrates are generally converted to glycogen through the actions of an enzyme in the liver.
Glycogens are converted back to simpler carbohydrates when there is inadequate carbohydrate in the body.
More on carbohydrate homeostasis can be found here: brainly.com/question/17563062?referrer=searchResults
Answer:
Cell wall, Vacule, Plastids
Explanation:
