D. a car is not made up of living cells
These viruses – known as phages – attach to the surface of bacterial cells, inject their genetic material, and use the cells' enzymes to multiply while destroying their hosts. To defend against a phage attack, bacteria have evolved a variety of immune systems
-it transports nutrients in the body
-it circulates macrophage in the body
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e. equal numbers of protons and neutrons in the nucleus orbited by varying numbers of electrons
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Many antacids — including Maalox, Mylanta, Rolaids and Tums — contain calcium. If you take too much or take them for longer than directed, you could get an overdose of calcium. Too much calcium can cause: nausea.
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