The krebs cycle and electron transport processes take place within the
a.) mitochondria
b.) lysosome
c.) vacuole
d.) cytoplasm

The Krebs cycle and electron transport chain take place in the inner membrane of the mitochondria, an organelle in the cell cytoplasm.

The mitochondria consists of an outer membrane, an inner membrane and a gel-like material called the matrix. The outer membrane covers the organelle like a skin. The inner membrane folds over many times and creates layered structures called cristae. It is where the Krebs cycle and the electron transport chain take place.

The folding of the inner membrane serve to increase surface area inside the mitochondria.

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.  

the answer is b.) hydrogen bonds between bases.