I want to do some revisions under part of a flower and mode of nutrition in living organisms

Let's revise these topics:

Part of a flower
A flower typically consists of four main parts: sepals, petals, stamens, and carpels (or pistil). Sepals protect the developing bud, while petals are often brightly colored to attract pollinators. Stamens are the male reproductive parts, producing pollen, and carpels are the female reproductive parts, containing the ovules where seeds develop.

Mode of nutrition in living organisms
Living organisms obtain nutrients through two primary modes: autotrophic and heterotrophic. Autotrophs, like plants and some bacteria, produce their own food, usually through photosynthesis or chemosynthesis. Heterotrophs, such as animals, fungi, and most bacteria, obtain food by consuming other organisms or organic matter.