State two systems or organelles and tell how they interact to maintain balance.

How would you explain to steno how fossil shark teeth could be found in the country side?

How many oxygen molecules (O₂) are required each time a molecule of glucose (C₆H₁₂O₆) is completely oxidized to carbon dioxide and water via aerobic respiration,? A) 1 B) 3 C) 6 D) 12 E) 30

Significance of primordial soup

Jenny plays on a soccer team and kicked the soccer ball into the goal. What role did her muscles preform? A. Her muscle carried blood to her legs. B. Her muscles made the energy for her legs C. Her nicked stored minerals in her legs. D.

What are deep canyons cuts by rivers a result of

I need to know what groups in science only contain in metals

A scientist studies a species of bird. The males and females look very similar in color, but the males are much larger than the females. What can the scientist conclude about these birds? O A. The males compete to fertilize. O B.

After chlorofluorocarbons were banned, which class of chemicals was used in their place?

If element X has 48 protons, how many electrons does it have?

How are fats and steroids similar