State the phase where each of the following processes occurs: a) sister chromatids separate 2) homologous chromosomes form pairs 3) two haploid cells form.

Which skill, if it cannot be performed by a 3-year-old child, should alert the nurse that the child may be developmentally delayed?

The response is the basis for vaccination. primary secondary tertiary none of the above

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.