AP BIOLOGY

Detailed explanation-1: -Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.

Detailed explanation-2: -Filament. The thin stalk that supports the anther in the male portion of the flower.

Detailed explanation-3: -The filament is a long stalk-like structure which supports the anther. The anther is a two-lobed structure which contains microsporangia for the production of pollen grains. Small nectaries are found at the base of stamens which provide food for insect and bird pollinators.

Detailed explanation-4: -The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up. During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary.

Detailed explanation-5: -Anthers are held up by a thread-like part called a filament. The pistil has three parts: stigma, style, and ovary. The stigma is the sticky surface at the top of the pistil; it traps and holds the pollen. The style is the tube-like structure that holds up the stigma.