What did Mendel's cross-pollination of pea plants prove?
Different offspring of the same parents inherit different characteristics.

Cross-pollination creates plants with new characteristics.

Pea plants can have yellow seeds or green seeds.

Genes are found on chromosomes in all cells of an organism.

c

explanation:

hello there the answer is d

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.