Help me plzz i need help with this I think one of them is sweating I am not sure though

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.

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

There are only about 250,000 known fossil species. true or false