Fossil fuels are considered nonrenewable resources because a. burn so quickly
b. are in such high demand
c. take millions of years to form
d. pollute the air

Follow the directions for self-quiz question 8, draw it, by labeling the appropriate structures with these terms, drawing lines or brackets as needed: chromosome (label as replicated or unreplicated), centromere, kinetochore, sister chromatids, nonsister chromatids, homologous pair, homologs, chiasma, sister chromatid, cohesion