Match each stage of demographic transition with its correct description. Term Definition
Stage 1 A) High birthrates, high infant mortality rate, no health services or family planning options
Stage 2 B) High birthrates, decline in deathrates, increased health services but limited family planning options
Stage 3 C) Low birthrates, low deathrates, higher quality of health services and family planning options

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 list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad