using the divergence event labeled 3, an open circle, you would expect 25 amino acid changes/kb between descendent lineages if using gene b as the molecular clock.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

hope i

-lavira: )

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.