Worth 15 for 2 easy questions multiple choice second questions even easier than the first im pretty sure the answer is c just checking

which of the following conditions would likely prevent the assembly and survival of new kinds of organic molecules on earth today?

a. the presence of bacteria and other life forms

b. the presence of carbon dioxide

c. the supply of atoms that serve as raw material

d. the light and warmth from the sun

2.
several different species make up a

a. family.
b. genus.
c. kingdom.
d. phylum.

2. Several Different Species Make up a

D. Phylum

The answer to question 1 is A - The presence of bacteria and other life forms

The answer to question 2 is D - Phylum  

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.