Bees collect the nectar from plants, which they use to create honey to feed on for themselves and for their larvae. In turn, the plants are able to be pollinated also.
Bees are helpful to us by making honey and speading pollenation
The bees will fly from flower to flower, while doing this process, pollen grains will be stuck to the bee's hair on its legs and when it reaches another flower, the pollen grains will fall off the bee's leg to the flower, therfore fertilising the flower.
BEES
they let bees build hives in them
Yes, bees collect nectar from flowers of the plants
Bees do not kill plants. In fact, bees play a critical role in pollinating plants, which helps them reproduce and produce fruits and seeds. Bees collect nectar and pollen from plants to feed themselves and their colonies.
It depends on what you define as helpful. Yes, all bees have a role in maintaining balance in their ecosystems, especially through pollination, but they are not neccesarily "helpful" to humans directly.
they spread pllen
Bees don't eat plants, green or otherwise but they do eat the nectar that they collect from plants.
Yes, clematis plants can attract bees with their colorful and fragrant flowers.
they produce honey that we eat
There are plenty of other insects that pollinate plants apart from bees so the plants would survive.