Which of the following modes of metabolism is most likely used for an individual that lives in an environment without oxygen, dies when exposed to oxygen, and uses fermentation?
a. photoautotroph
b. obligate anaerobe
c. heterotroph
d. facultative anaerobe

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.

Determine if the following statement is true or false. if true, choose true. if false, choose the rewording that is true. according to the law of independent assortment, alleles for each gene are inherited together so that they always stay together. according to the law of independent assortment, offspring express a combination of their parents' traits. according to the law of independent assortment, alleles for a characteristic split during meiosis and combine during fertilization. true according to the law of independent assortment, alleles for each gene are inherited independently so that no two alleles stay together.