The reason why the flower is red is mainly because it contains a special pigment called carotenoid. Carotenoids can absorb some wavelengths of light, among which red light and orange light absorb the most. When these lights are absorbed, they will reflect other colors and form the colors we see. In addition, carotenoids can also protect flowers from overexposure.

The growing environment of plants will also affect the color of flowers. For example, some plants need to grow in strong light to produce bright colors, while others need to grow in a cool or semi-cool environment to show their original colors. Different kinds of flowers have different colors and patterns, which are related to their genes.

For example, roses may be red, pink, white or other colors, and the difference between them mainly lies in the different genes of flowers. Through artificial cultivation and improvement, we can make flowers more colorful and diverse. For example, we can create a new hue by artificial hybridization, such as mixing red and yellow flowers to make them more beautiful and attractive.

In a word, the flower is red because it contains carotenoids, a special pigment, and it is also related to plant growth environment, genes, artificial cultivation and other factors. These factors interact and finally shape the bright color in our eyes.

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Flowers are the reproductive organs of angiosperms, which are also called flowering plants or flowering plants. Their biological function is to combine male sperm cells with female egg cells to produce seeds. This process begins with pollination and then fertilization, thus forming seeds and spreading them.

For higher plants, seeds are their next generation and the main means of natural distribution of various species. The combination of flowers planted on the same plant is called inflorescence. The flower structure of gymnosperms is simple, usually without obvious perianth, unisexual, forming male and female cones, and the flower structure of angiosperms is complex and diverse. So flowers generally refer to the flowers of angiosperms.