In order to produce an effective immune response within the body, the person must be injected with a dosage of a virus or bacteria, and for it to be allowed to grow in the person, which replicates just enough to stimulate a response from the immune system.
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Las sociedades industrializadas generan una gran cantidad de productos que no son imprescindibles para el ser humano, por lo que se usan un tiempo y son desechados.
Homeostasis keeps the environment inside the cell always the same so that the cell doesn't have to keep making adaptations to match the ever-changing outside environment. <span />
Answer: These specialized groups are collectively called the classification of living things. The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species . The most basic classification of living things is kingdoms. Currently there are five kingdoms.
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The cytoskeleton of eukaryotic cells is made of filamentous proteins, and it provides mechanical support to the cell and its cytoplasmic constituents. All cytoskeletons consist of three major classes of elements that differ in size and in protein composition
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