It is called a scientific method.
United States is home to <span>temperate </span>rain forests<span>, grassland, alpine areas, </span>desert<span>, </span>taiga<span>, </span>tundra<span> and </span>tropical<span> regions.</span>
It must be able to replicate it's DNA
For future reference, please organize your questions better :)
The density and variety of receptors vary in different regions. For example, in hairy skin the peritrichial endings are most common, but Merkel's discs and free nerve endings are also present. In glabrous (hairless) skin, free nerve endings are present, as are Merkel's discs and Meissner's corpuscles.
Your answers for 1 and 2 are correct
Brainliest?