The skin separates the human body from the environment. Skin structure serves which primary function? a preventing infection
preventing predation
absorbing needed gases
absorbing needed energy

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.