Based on the cycle of photosynthesis and cellular respiration, one can say that the ultimate original source of energy for all living things on earth is

Why is cell theory classified as theory and not a hypothesis

The living substance in a cell is called:

Which mutation would be most beneficial to a peacock and its descendents? A. a mutation in the plumage that results in a white peacock B. a mutation causing an overly curved beak C. a mutation causing blue eyes D.

Controls involuntary response

Which two elements have similar characteristics? Periodic Table OF The Elements

If I turn my computer off at least once a week, it will run faster. What is the independent variable? What is the dependent variable? What are some controlled variables?

Which process is a "build up" process

Volcanoes, lightning, and the combustion of fossil fuels ALL contribute to acid precipitation. true false

Does an electric current cause a coiled wire to become an electric bell

Which is a renewable resource? A) coal B) sunshine C) gasoline D) natural gas