Question

1-Which is smallest unit of living things?
2-Which pigment is present in plants?
3-Give one example of nonliving things?​

Answer 1

Answer:

1. cell
2. chlorophyll
3. iron

Answer 2

cell

The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.

Chlorophylls

Chlorophylls. The chlorophylls, a and b, are the pigments of photosynthesis. They are produced in chloroplasts in the photosynthetic tissues of the leaf. The chlorophyll molecules are very water repelling, partly because of the long phytol tail in the molecule.

Nonliving things are things that are not alive. They do not move. They do not grow.

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Non-Living Things Classification.

Natural Nonliving Things Man-Made Nonliving Things

Example: Sun, Moon, Stars, Sky, Clouds, Rocks, Mountains, etc. Example: Toys, Chairs, Tables, Beds, Houses, Buildings, etc.