What is the function of the respiratory system? 1. to break down food.
2. to breathe.
3. to transport materials in the body.
4.to rid the body of waste.
please help me out!!

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: )

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

answer; both surfaces of the membrane are nonpermeable