Actin and myosin, found mostly in muscles cells, are made up of which type of macromolecule?
nucleotides
proteins
lipids

Proteins

Actin belongs to a family of globular multifunctional protein and myosin is a belongs a family of motor proteins. Both actin and myosin combines to form microfilaments. These are found in the eukaryotic cells. In humans and animals the combination of actin and myosin is responsible for contraction and relaxation of muscles in the presence of ATP.

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.