Which gas in the atmosphere made the development of eukaryotic cells possible? A. methane B. nitrogen C. oxygen D. carbon dioxide

Which of the following is arranged in the proper order from smallest to biggest? A. tissues cells organ systems organs B. cells organs tissues organ systems C. organ systems organs tissues cells D. cells tissues organs organ systems

If the same kind of fossil is found on two continents that are widely separated today, what does that tell us? A) The continents were once joined together. B) The animal lived on more than one continent.

Which property describes the how much a community can resist change? A. interaction B. population C. stability D. diversity

Which of these processes is used to make the atp produced by glycolysis? a. chemiosmosis b. substrate-level phosphorylation c. enzyme-mediated hydrolysis d. none of these is the correct process.

What organisms can live in hot springs and thermal vents

What type of validity is demonstrated by examining the extent to which a passing grade in a nursing course is correlated with passing the registered nurse licensure examination?

Match the food item to its nutrient group. carbohydrates calcium fats proteins vitamins zinc

What could be the possible result of founder effort on genetic variation?

Which planets interior is most like the one on Uranus?

Sharks have internal fertilization. true or false.