Breathing is a part of physiological respiration<span> and functions to bring oxygen into the lungs and expel carbon dioxide. </span>Cellular respiration<span> is a chemical process by which energy is obtained within individual cells from biomolecules like glucose. In </span>aerobic respiration<span>, oxygen is used</span>
The answer is B Troposphere. The Troposphere is actually the lowest layer of atmosphere on the earth. The Lithosphere is the upper area of the Earth's solid layers.
<u>ANSWER:</u>
Scientific explanations are accepted when there is sufficient evidence to prove them right. In addition, scientific explanations must be logical to be acceptable and must match as much evidences as possible.
<u>EXPLANATION:</u>
- Scientific explanations explain something about the natural world by making use of observations and measurements.
- These are usually tentative proposals that need to be verified or proved to be true.
- The observations and measurements must prove the scientific explanation to be true or must support it so that it becomes acceptable.
Answer:
Complete digestion of food takes place in the intestine. Various enzymes present in the intestine act on food and digested food gets absorbed. Typhlosole increases the absorption surface of the intestine.13
