A couple receives DNA analysis, which determines that they are both heterozygous for the gene responsible for Tay-Sachs disease. Should doctors or the government have a role in deciding if the couple can have children together? Construct an argument to explain why or why not.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

characteristics of hydrocarbons