Bees use nectar from the flowers of plants as food. As they collect nectar, dustlike pollen grains stick to their body. When they move from flower to flower, pollen is transferred to other flowers. The pollen from other flowers helps the plant make seeds.
Which challenge of life does the bee help the plant meet?
the answer is B reproduction you can know by "When they move from flower to flower, pollen is transferred to other flowers. The pollen from other flowers helps the plant make seeds. "