In the question “How does pineapple consumption affect the number of digestive bacteria?”, pineapple consumption is A) the control group B) independent Variable
C) dependent variable D) experimental group

For the approach of how does pineapple consumption affect the number of digestive bacteria?, pineapple consumption is  the independent variable (option B).

Explanation:

The formulation of a hypothesis is not complete without the existence of the independent and dependent variables, the main variables from the research point of view.

The independent variable is one whose change or modification is capable of impacting the dependent variable, which is one that can be quantified or measured.

According to the approach, if somebody want to know how the consumption of pineapple influences the number of digestive bacteria, the independent variable is the consumption of pineapple, which can be controlled and modified, while the characteristic that is under the influence of this variable is the amount of bacteria, so that the latter is the dependent variable.

The other options do not apply because:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.