Which of the following is a secondary pollutant? (5 points) carbon dioxide
carbon monoxide
sulfur dioxide
nitric oxide
nitrogen dioxide

b is dominant over the allele for the white fur.

69 is the correct math for the amino acids

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.