Question

give reason for the following.
1. non - green plants cannot make their own food.
2. sun is the ultimate source of energy for living things.
3. desert plants like cactus have spines instead of leaves​

Answer 1

Answer:

1.no chlorophyll

3.because of less water

Answer 2

Answer:

1. Non-green plants cannot make their own food because they do not have chlorophyll in their leaves which breaks down carbon dioxide and water molecules thus do not produce glucose(food). They cannot make their own food and usually absorb food from other plants, dead animals or stale food.

2.Answer: The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis. Animals eat plants and use that same chemical energy for all their activities.

3.Cactus has spines rather than leaves so as to save water. Cactus has spines rather than leaves so as to save water. Cactus has spines instead of leaves because to conusume water in hot deserts. Water vapour is produced by the process of photosynthesis.

Explanation:

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