Answer:HIV finds the white blood cells, called CD4 cells. HIV gets inside the CD4 cell and makes copies of itself. Then, HIV kills the CD4 cell and the new HIV copies find other CD4 cells to get inside and start the cycle again. HIV kills immune system cells that help the body fight infections and diseases.
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Because the element carbon forms the backbone of the molecules that make up cells, one of the most important biogeochemical cycles to life on Earth is the carbon cycle. ... Carbon moves from living things back to the environment as all types of organisms use some of their food molecules as a source of energy.
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<h2>Evolutionary analysis of organisms</h2>
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- Some organisms, which were characterized together determined to genetically very different .
- Using the analysis of RNA developed by Carl Woese, scientists are now able to classify the human evolution
- living things based on genetic information instead of expressed characteristics.
- Genetic information is more specific and can give clues as to the evolutionary ancestry of organisms.
- That is the reason adding of various domains in previous system of classification is allowed for a comparison of species genetic code
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The study of cladistics, however, results in a phylogeny tree in which fungi are more closely related to animals than to plants. In other words, animals have a more recent common ancestor with fungi than with plants, and the mushrooms in your salad are more closely related to you than to the lettuce. Differences Between Fungi and Animals
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