Even though some flowering plants contain accessory pigments which give them colors, they still contain...

Explanation

Some flowering plants contain accessory pigments which give them their distinct colors. However, these plants still contain a main pigment that is essential for their survival. The question is asking which pigment is still present in these plants despite the presence of accessory pigments. The correct answer to this question is Option B: chlorophyll. Chlorophyll is the main pigment found in plants that is responsible for photosynthesis, the process by which plants convert sunlight into energy. Accessory pigments, such as carotene and xanthophyll, help to absorb additional light energy for the plant, but they do not replace the function of chlorophyll. It is important to note that melanin, which is Option A, is not a pigment found in plants. It is a pigment found in animals and is responsible for skin and hair color. Therefore, Option A is not correct. For more information on the functions of pigments in plants, please see the relevant sections of your Biology textbook.