Which of these is an advantage of multicellular organisms?
a. all of the cells are the same
b. they can grow large
c. they can reproduce quickly
d. one cell performs all of the necessary functions

which of these is an advantage of multicellular organisms?

a. they can form complex organ systems
b. all of the cells are the same
c. they can reproduce quickly
d. one cell performs all of the necessary functions

for question 1 i think it is d.
and for question 2 i think it is a

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.