Answer:
Cats also purr when they are nervous or in pain, leading some experts to believe that this uniquely feline vocalization is actually a method of self-healing. A domestic cat's purr has a frequency of between 25 and 150 Hertz, which happens to be the frequency at which muscles and bones best grow and repair themselves.
Explanation:
Since it takes about 7-9 months for a baby to come out it would be 7-9 months
Answer:
Enzyme A
Explanation:
<em>Hello there?</em>
In the stomach, hydrochloric acid is present which is a strong acid (0-4) which is below pH 7. Therefore an enzyme that act best well here should be below pH 7 which for our case is A.
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