Characteristics of membrane protein:.
1. Membrane proteins transfer genetic information to the cytoplasm.
2. Membrane proteins act as receptors to molecules like hormones.
3. Membrane proteins form junctions between cells.
4. Membrane proteins serve as enzymes.

Membrane proteins act as receptors to molecules like hormones.

Explanation:

Membrane proteins are proteins that are closely associated with a cell membrane. On the cell membrane, they could act as receptors to molecules like hormones that need to be transported across the hydrophobic lipid bilayer.

A good example of membrane proteins is sodium channel, that acts as receptor to neurotransmitters.

this is a good question! i'll do some research and come back when i have the answer!

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.