In lubeck, germany, in 1930, a group of 251 infants was accidentally administered a tainted vaccine for tuberculosis that contained live mycobacterium tuberculosis. this vaccine was administered orally, directly exposing the infants to the deadly bacterium. many of these infants contracted tuberculosis, and some died. however, 44 of the infants never contracted tuberculosis. based on your knowledge of the innate immune system, what innate defenses might have inhibited m. tuberculosis enough to prevent these infants from contracting the disease?

the answer is c cumulus. cumulus clouds can be seen on a gray and rainy day, because cumulus clouds create thunderstorms. give me brainliest if right.

it would be heredity

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.

b a mature ovary of a plant.