Question

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Answer 1

1.Difference : Human beings have complex structures for the complete process of nutrition involving the following steps ingestion, digestion, and egestion of food while Amoeba has a simple process in which it engulfs the food with the help of pseudopodia and traps it in food vacuoles.

2.It has to do with the characteristics of warm air and cold air. Warm air has more kinetic energy than cold air and so the molecules bounce off each other with more velocity. The increased velocity causes the molecules to push away from each other thus it is less dense. Let me illustrate: when you see bubbles in a swimming pool they rise rapidly to the surface because they are less dense than the water. In a similar fashion, cold air in a room sinks to the floor because it is denser than the surrounding air. Likewise hot air rises to the ceiling in a room because it is lighter. It would make sense to use these characteristics when heating or cooling a room. If you put a heater on the floor, the hot air naturally rises and the whole room is warm. If however, you put that heater close to the ceiling the hot air would stay at the top of the room and it would be cold where you are sitting.

3.Green substance in producers that traps light energy from the sun, which is then used to combine carbon dioxide and water into sugars in the process of photosynthesis Chlorophyll is vital for photosynthesis, which helps plants get energy from light. ..

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Answer 2

Answer:

only one cell

2.2 roof

3.ot makes oxygen