Answer:
C) redundant organs present in an organism, which have been functional in the organism’s ancestors
Explanation:
Vestigial organ are bodily organs which are retained in the evolution however over a long period of time have lost their original functions and become reduced in size due to changes in the living habits. They serve as the evidence of evolution. They include caecum and appendix; coccygeal vertebrae
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.
Learn More:
For more on function of kidneys check out;
brainly.com/question/1285333
brainly.com/question/909694
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I strongly believe that the answer is A, I hope this helped :)
The answer is C the moon is between the earth and sun
