The nurse is teaching a client, gravida 1 para 0, at 8 weeks gestation about expected weight gain in pregnancy. the client's prepregnancy bmi is 21 kg/m2. which statement made by the client indicates an understanding about weight gain?
1. "i should gain 10-15 lb during the first trimester"
2. "i should gain a total of about 30 lb during my pregnancy."
3. "i should gain no more than 0.5 lb per week during the third trimester."
4. "if i gain < 20 lb during pregnancy, it will be easier to lose weight postpartum."

Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.