Scientists were investigating a pond of water found deep in a South
American cave along the Yucatan Penisula. The obtained many
samples which they took back to their lab. After much testing, they
found that the water has an acidic pH of 3. Another much more
surprising discovery was that a new species of unicellular organism
was present in the samples. The organism was observed with a
microscope and found to not have a bound nucleus or organelles. To
which Domain would this organism be classified?

"do a testcross with a homozygous recessive plant."

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

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.  

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.