Which is the best summary of the selection? Leaves are something to be thankful for because they produce carbohydrates.
Leaves conduct photosynthesis, which converts energy from the Sun into chemical energy that is useful and important to humans.
Photosynthesis is a vital part of the food chain.
Radiant energy is the most important part of photosynthesis. It is energy from the Sun, which leaves are thankful for.

Asexual reproduction is a type of reproduction in which only one parent is involved. There are basically 5 types of asexual reproduction. These are binary fission, budding, vegetative reproduction, fragmentation and by spores. During fission, the cellular contents are replicated internally and then are divided into two daughter cells. This is seen in bacteria. Plants reproduce asexually by vegetative propagation. In this, part of plant such as bulb, tuber, rhizome develops into a new plant. Budding is seen in yeast. In this, new organism develops from a bud at a particular site. In fragmentation, an organism physically splits and develops into new organisms from each segment. It is seen in segmented worms. Spores are produced by bacteria, fungi, algae, plants. This spore later develops into new organism.

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