The roof of the mouth:

What will be an ideal response?


palate

Biology & Microbiology

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Which one of the following statements about pH is incorrect?

A. An acidic solution has a higher concentration of protons than hydroxide ions. B. Physiological pH is defined as the pH of pure water, 7.0. C. Some cellular compartments have different pH values than others. D. The pH of a solution can range from 0 to 14. E. A solution of pH 5 has a proton concentration 100 times greater than a solution of pH 7.

Biology & Microbiology

Bile is ____

a. an enzyme that digests fat b. made in the gallbladder c. stored in the liver d. a mix of salts, pigments, and cholesterol e. necessary for protein digestion

Biology & Microbiology

Why do we say "waste is a human invention"?

A.Humans are more efficient at dealing with waste than nature. B.Humans produce some waste products that cannot easily be broken down. C.Only humans can violate the Law of Conservation of Matter. D."Nature" has not yet figured out what to do with waste.

Biology & Microbiology

________ can behave as an enzyme and may have been the first macromolecule leading to the first cells

Fill in the blank(s) with correct word

Biology & Microbiology