Which best describes mitochondrial dna (mtdna)?
mitochondrial dna is the same as nuclear dna.
mitochondrial dna is inherited through the father.
mitochondrial dna can be traced for generations.
mitochondrial dna requires large amounts for testing.

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.

answer; both surfaces of the membrane are nonpermeable

which