Which of the following best describes the difference between a mixture and a pure substance? A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom.
B. A mixture is made up of only one type of atom; a pure substance is made up of more than one type of atom.
C. A mixture has different properties throughout; a pure substance has the same properties throughout.
D. A mixture has the same properties throughout; a pure substance has the different properties throughout.

a chair, a bed, and a toothbrush

explanation:

correct answer is a. and d.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.

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