The key role of decomposers in an ecosystem is to make available to plants.
a
energy
b
proteins
c
nutrients
d
carbohydrates

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: )

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

cell division is not regulated in tumor cells.