Question

give reason -
1 - stem of the cactus is leaf shaped fleshy and green.
2 - petals of a flower are generally scented and bright in colour.

Answer 1

Cacti have a thick, hard-walled, succulent stem - when it rains, water is stored in the stem. The stems are photosynthetic, green, and fleshy. The inside of the stem is either spongy or hollow (depending on the cactus). A thick, waxy coating keeps the water inside the cactus from evaporating.

Most of the flowers are brightly colored with a sweet smell because these things attract the insects so that insects come and sit on them. In this way the pollens fall on the insect. When this insectsit on another flower , there they shed the pollens. This helps in pollination.
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Answer 2

1. It is fleshy so that it can store water. It needs to store water as it grows in terrains where water is scarce and the climate is hot.

2. They are scented and bright in colour so that they can attract insects. Insects help in flower pollination. They carry pollen to the stigma of the flower or the stigma of another flower. Their colour and scent cause the insects to go to that specific flower instead of other not so bright and colourful flowers.