Metamorphic rocks can be made up of newly-crystallized minerals formed during metamorphism but they can also include pre-existing minerals unchanged since their crystallization in an igneous rock.

Why does the skin of your finger shrink when you wash clothes for a long time?

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.

Which describes the habitat of a frog?