The brain is the key organ in which system

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

b. read the phase at the intersection of any given temperature and pressure.

the answer is c. altitude. hope this ! #brainiac

yes the words are placed in front