Which macromolecule holds your master set of instructions that control both the day-to-day operations and the reproduction of cells?

The answer would be NUCLEIC ACIDS .

There are four macro-molecules of life:

Carbohydrates - they are organic compounds and come in the form of monosaccharides, used for short-intermediate-term energy storage.

Nucleic Acids - includes DNA and RNA. They contain the genetic instructions used in the function and development of all living things.

Lipids - It is also used for energy storage.

Proteins - composed of amino acid polymers used in maintaining bones, blood, organs and the like.

where is the scientific experiment?

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.