Ok here we go:
Science starts with observing which leads to hypothesis, which is tested by experiments.
The other two i am not sure of. Hope i was a help to you. One thing you can do to figure out the other two is google: "what type of science includes medicine and envirnmental science", and do the same for the other one.
The answer to that question is true
Answer:
The process of respiration is similar in all organisms, whether plants or animals – carbon dioxide is given out and oxygen is used up, and a lot of energy is produced. In plants, specific organs for breathing are absent. The exchange of gases, however, occurs by the process of diffusion.
Explanation:
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There are 6 type of simple machines, one of which is lever. Hammer is an example of lever. Levers are rigid bars that are pivoted at one point called a fulcrum, that is your hand. This is also the point where you apply force that is being maximized along its length to make it easier to pin down the nail.
