Some organisms have a large geographic range. For example, the Norway rat lives on every
continent except Antarctica.
A population of Norway rats is the number of rats
in one particular area. Do you think it's
scientifically possible for a population of Norway
rats in North America to carry different genetic
mutations than a population of Norway rats in
Africa? Do you think it's possible that they carry
some of the same mutations? What types of
information can scientists learn by studying the
genomes of these two populations of rats?

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

Gay-lussac's law i think.

Leaves specifically the gas exchange between plants and the environment. while plants undergo photosynthesis, they also partake in cellular respiration. respiration is the process that happens in the leaves of plants.