Which term applies to the fact that the protozoan that causes malaria is very harmful and often kills its host?
a) symbolism
b) commenalism
c) mutualism
d) paratism

The correct answer is parasitism. Parasitism is a relationship when one organism is helped but another is harmed.

If you need more help, comment below and I'd be happy to assist.

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.