Suppose that scientists genetically engineered an organism that could metabolize petroleum more quickly than any other organism. Which would be the greatest effect on society? People might grow the organism to use in home oil spills.
Oil spills in the environment might be cleaned up quicker.
More people might be hired to work in the oil drilling industry.
Companies that make chemicals to clean up oil spills might profit.

People might grow the organism to use in home oil spills.

Explanation:

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answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.