Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services?

A. Bees pollinate plant species that contribute to the carbon cycle.
B. Bees pollinate plant species that produce food.
C. Bees pollinate plant species that humans admire in nature.
D. Bees pollinate plant species that produce oxygen that humans need.

B. Bees pollinate plant species that produce food.

Bees play a crucial role in pollinating many different plant species, including fruits, vegetables, nuts, and seeds that make up a significant portion of the human diet. Without bees, many of these plant species would not be able to reproduce and produce the food that humans and other animals rely on. Therefore, bees directly contribute to ecosystem services by pollinating plants that produce food.