AP BIOLOGY

Detailed explanation-1: -Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide herbivore protection.

Detailed explanation-2: -Insects eat the pollen to provide energy for their own metabolic processes but also to provision their developing young. Nectar, on the other hand, provides immediate energy and ensures that the insect (or bird or bat) can fly to the next flower.

Detailed explanation-3: -Nectar in flowers serves chiefly to attract pollinators, such as fruit-eating bats, hummingbirds, sunbirds, and insects. Nectaries are usually located at the base of the flower stamens, which draw animal visitors into contact with the pollen to be transferred.

Detailed explanation-4: -The correct option is B Nectar.

Detailed explanation-5: -Nectar is produced in glands known as nectaries. The glands are commonly found at the base of flowers, where they produce nectar as a reward for pollinators. However, there are also extrafloral nectaries located elsewhere on the plant, often on the leaves or petiole – the stalk that attaches the leaf blade to the stem.