What does the adult stage of the Carpenter Bee primarily consume?

The adult stage of the Carpenter Bee primarily consumes both pollen and nectar, which is essential to its diet. Nectar provides the necessary sugars that give adults the energy they need for flight and daily activities. Pollen serves as a crucial protein source, particularly important for female carpenter bees as they use pollen to feed their offspring. This combination allows them to thrive and support their reproductive cycle effectively.

The other choices present variations that don't fully capture the carpenter bee's dietary habits. For instance, while wood is an important aspect of their nesting behavior, it is not part of their diet, making options that include it inaccurate. Additionally, while nectar is a significant component of their diet, mentioning only nectar or leaves does not present the complete picture of their nutritional intake and lifestyle. Thus, the choice that identifies both pollen and nectar as their main food sources is the most accurate and comprehensive.