I) a bee visits several flowers in succession on a single willow herb plant. in doing so, the bee transfers pollen from the younger flowers, near the top of the inflorescence (group of flowers) to the older flowers near the base of the inflorescence. is this an example of self-pollination or cross-pollination?

Cross pollination. The bee is taking from a new plant and giving it to the old plant so the old plant can be good as new. Good enough for ya mods?

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.