PLEAS HEL

When light is refracted

A.
it changes it direction and stays in the same medium.

B.
it keeps moving in the same direction as it passes into a new medium.

C.
it changes its direction as it passes into a new medium.

D.
it is absorbed as it strikes the surface of a new medium.

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.

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms

Are gametes exactly the same? explain why or why not?