The process of a white blood cell engulfing a bacterium is phagocytosis.
The greenhouse effect is the effect where carbon dioxide (usually from factory gas emissions, car exhaust gas, etc) gets sent into the Earth's atmosphere , however, instead of disappearing, it gets trapped under the atmosphere of the Earth and cause the temperature of the planet to rise. The temperatures rise since the radiation of the sun's rays gets trapped under the layer of carbon dioxide. This affects climate change since when the globe warms up, our earth begins to warm up too resulting in colder parts of the earth to rise in higher temperatures than usual.
The deer and wolf population would decrease because the deer have less plants to feed on while already being eaten by the wolves, and eventually the wolves will have less deer to feed on which will decrease their population
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T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.
