Explanation:
fumes from vehicles is the most common cause of air pollution
Photosynthesis<span> makes the glucose that is used in </span>cellular respiration<span> to make ATP. The glucose is then turned back </span>into <span>carbon dioxide, which is used in </span>photosynthesis<span>. While water is broken down to form oxygen </span>during photosynthesis, in cellular respiration<span> oxygen is combined </span>with<span> hydrogen to form water.
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Answer:
Telomeres
Explanation:
Telomeres are present at the ends of chromosomes and prevent the lose of genes. They shorten as a person ages. Thus lengthening them may slow down age related problem.
Species A’s population will decrease due to limited space. <em>(I think. I'm sorry if I'm wrong.)</em>
Answer:
Venous blood
Explanation:
Arterial blood is carrying oxygen to tissues.....after delivering the oxygen it is venous blood and has less oxygen.