A person who is paralyzed can use an electronic device implanted in the brain to control robotic hands. How is that possible?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna

Why do mountaineers become breathless as they reach high altitudes