What is the relationship between DNA and a chromosome

chromosomes contain DNA in them.

Explanation:

DNA is quite similar to everyone else. everyone has 99.99% the same DNA. Yet everyone looks different! Everyone has 24 chromosomes. THESE chromosomes contain the data for your hair color, eye color, blood type, etc. Chromosomes contain DNA.

Explanation:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body.

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.  

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.