Answer;
True.
Tobacco can damage the immune system of a person with aids.
Explanation;
-Smoking of tobacco is dangerous and cause various effects to the body. These effects include; causing serious health conditions like cancer,and also lessening the body’s immune response, making it more susceptible to infections.
-Tobacco products damage virtually every system of the body, and the immune system is no different.
White fur to keep them warm and camouflaged
Sir Isaac Newton, held the theory that light<span> was </span>made<span> up of tiny particles. In 1678, </span>Dutch<span> physicist, </span>Christiaan Huygens<span>, believed that </span>light<span> was </span>made<span> up of waves vibrating up and down perpendicular to the direction of the </span>light<span> travels, and therefore formulated a way of visualizing wave propagation.</span>
Answer:
It is because of Evaporation. The wind evaporates the water on your skin which in turn absorbs the heat from your skin. Wind and heat both help to evaporate that water and hence you feel cold. Water evaporates from your skin using up your body heat.
Explanation:
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Answer:
C) The Calvin cycle requires ATP and NADPH, which require sunlight to be produced
Explanation:
The light-dependent phase of photosynthesis includes the photolysis of water molecules. The released electrons are passed to PSII to PSI via electron carriers and finally to NADP+ to reduce it into NADPH.
Transfer of electrons via electron carriers also generates the proton concentration gradient which in turn drives ATP synthesis. ATP and NADPH formed during light reactions are used in the Calvin cycle as an energy source and electron donor respectively.
Hence, to continue, the Calvin cycle requires the synthesis of ATP and NADPH in the presence of light.
