Which is the most reliable source for a presentation about the history of Washington, DC’s Smithsonian museums?

Types of scientific inquiry that biologist engage in that cannot be completely controlled

In horses gray horses gg are codominant to white horses ww. the heterozygous horse gw is an appaloosa horse (a white horse with gray spots). cross a white horse with an appaloosa horse. i just need the answer to the genotypic ratio and phenotypic ratio

The boiling point of a substance in city a is found to be 145 degrees celcius. the boiling point of the same substance in city b is 141 degrees celcius. which city, a or b, is at a higher elevation? how do you know? asap