Atmospheric oxygen gas is a pure substance

7. An atom that has gained or lost electrons is called a (n) a molecule. c. ion. b. nucleon. d. element.

Select the correct sequence of steps as energy is extracted from glucose during cellular respiration. electron transport chain - > citric acid cycle - > glycolysis - > acetyl CoA glycolysis - > acetyl CoA - > citric acid cycle - > electron transport

Which is one of the six fundamental elements that are found in living organisms? O helium O sodium O oxygen chlorine

Which reaction is most likely catabolic? A) A + B - - - > C + energy B) A + B + energy - - - > C C) A + energy - - - > B + C D) A - - - > B + C + energy

Usually air moves from A) high to low pressure areas. B) low to high pressure areas. C) full to empty pressure areas. Eliminate D) empty to full pressure areas.

Which of the following scenarios describes an epistatic gene interaction?

An 1815 volcanic eruption in Indonesia was followed by a three-year famine around the world. How was the volcano linked to the famine? O A. The eruption's ash and gas significantly dimmed the sun. B.

In the general equation of photosynthesis, why is chlorophyll written over the arrow rather than on the left side of the equation'

How many years did the Precambrian Era span? 2.5 billion 5 million 5,000 none of the above

Explain why most quartz is useful?