which of the following events during meiosis contributes most to the variation within a species?
select one:

a. pairing of chromosomes

b. creation of haploid gametes

c. segregation of alleles

d. separation of chromatids

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

9. the history of life on earth is recorded in