How did humans in Europe and Africa evolve to be lactase persistent while most other people did not

the index of refraction of the second medium is higher. i just took the test trust me !

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: )

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .