Which group of organisms do some scientists hypothesize first evolved as a result of the environmental conditions that existed on early precambrian earth? a. aerobic eukaryotes b. anaerobic prokaryotes

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.

Nh3 +02-no + h20 is unbalanced what is the balanced equation

What molecule contains an organisms genetic material, passed down from parents to their offspring