According to the second law of thermodynamics, a system never yields as much energy as was put in? true or false

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

How will you manage your time to accomplish the necessary tasks both on the job and at home?

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring