What gas do animals exhale?
Your
Oxygen
Carbon Dioxide
Nitrogen

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water