Which of manuel’s observations is not scientifically testable?

a. (1)

b. (2)

c. (3)

d. (4)

Solutions to environmental problems in europe must

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.

All organisms contribute some water to the water cycle by conducting