Answer:
Number of molecules= 9.34 * 6.022*10^23 = 5.6245*10^24 molecules.
Explanation:
Answer:
1. Buccal cavity (oral cavity) and the nasal passage opens into Pharynx. Pharynx opens into esophagus of the digestive system and opens into larynx of the respiratory system.
2. It is an organ which is found in both vertebrates and non-vertebrates. However, the structure may vary from species to species.
3. The word “Pharynx” is derived from the Greek words “Pharunx” or “Pharung”. Its plural form is pharynges.
Explanation:
"Untreated water from a factory flowing into a lake" is an example of point source pollution.
Why? You can actually point to a specific source- the factory. Runoff isn't considered point source.
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