Sound waves<span> coming from farther above, where it is warmer, will experience a refraction. The change in speed from the warmer </span>air<span> to the cooler </span>air<span> causes a bending effect, as the </span>sound travels<span> downward.</span>
The answer is B. Natural selection will find a way to affect one, then that one will affect many others.
Explanation:
When there are low oxygen levels in blood, the blood pH tends to lower. This is because there is an increased level of carbon dioxide in the blood that is converted to carbonic acid by carbonic anhydrase. When carbon acid dissociates, into H⁺ and HCO₃⁻ . The H⁺ influences the increase in acidity of the blood. The kidneys will excrete most of the H⁺ and retain most of the HCO₃⁻ to help maintain the right blood pH. However, most of blood pH homeostasis is maintained largely by the lungs.
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For more on function of kidneys check out;
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Bacteria - eubacteria kingdom - binary fission
blackworms - Oligochaeta - fragmentation
Hydras - hydrozoa - budding
copperheads - Reptilia -<span> parthenogenesiss
Fungi - Hypha - sporulation
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btw blackworms, hydras, copperheads. Are all in the Animalia kingdom, the thing in the middle is the class.