Final answer:
Some vegetables are bitter due to certain compounds produced by plants as a defense mechanism. The function of cork on trees is to protect underlying tissues. Plants store food in roots to survive during periods of dormancy or drought. Vegetables have different colors due to pigments. The colored petals of flowers attract pollinators and aid in fertilization.
Step-by-step explanation:
A. Why some vegetables are bitter: Some vegetables are bitter because they contain certain compounds, such as alkaloids, glucosinolates, or tannins, which contribute to their bitter taste. These compounds are often produced by plants as a defense mechanism to deter herbivores.
B. What is the function of cork on trees: The function of cork on trees is to protect the underlying tissues from damage, such as from extreme temperatures, physical injury, or infections. Cork cells are waterproof and provide insulation.
C. Why some plants store food in the root: Some plants store food in their roots as a way to survive during periods of dormancy or drought. The stored food reserves in the root can be used later to support growth and survival when resources are limited.
D. Why vegetables have different color: Vegetables have different colors due to the presence of pigments such as chlorophyll, carotenoids, and anthocyanins. These pigments are responsible for absorbing and reflecting different wavelengths of light, resulting in the various colors we see.
E. Why flowers have colored petals: The colored petals of flowers serve several functions. They attract pollinators, such as bees and butterflies, by signaling the presence of nectar. The colors can also help in distinguishing different species of flowers and assist in the process of fertilization.
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