Which process is NOT a way that carbon enters the atmosphere?
A
cellular respiration

B
volcanic eruptions

C
plant transpiration

D
fossil fuel burning

Kate is studying the transformation from unicellular to multicellular organisms. which metaphor is the most appropriate to apply to the map of the timeline.

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.

Which methods are the most common for dealing with waste