Which term is used to describe a fact that has always been observed true but could at some future time not be observed as true. A Hypothesis OB. Theory Oc. Law

Which system revise and send electrical signals throughout the body

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

9. the history of life on earth is recorded in