Oxygen (O) atoms have six valence electrons and beryllium (Be) atoms have two valence electrons. Which of the following is the correct formula for a compound made of oxygen and beryllium?

Peter Grant - the evolutionary biologist who has studied finches on Daphne Major (an island in the Galapagos) for several decades - collected data on birds' beak sizes, weight, diet and mating behavior to test his hypotheses.

Which of the following is true of the planet Jupiter? A) It is made of mostly solid material. B) It is further from the sun Saturn. C) It is one of the four terrestrial planets. D) It rotates faster than any other planet.

Which is a sex-linked recessive disorder that could be represented by the pedigree chart? a) hemophila b) cystic fibrosis c) sickle cell disease d) Huntington's disease

Between which two letters does mitosis occur

Can plants have sexual intercorse

Is the force that circulates blood electrical?

Summarize how movements of tectonic plates have influenced climate and life on earth

What are the three types of chemical bonds

In a pond, algae has 10,000 kcal of available energy. If the zooplankton which consumes the algae has 1,000 kcal of available energy, what is the available energy to the minnows that consume the zooplankton?

Why are the symptoms of vascular neurocognitive disorder so different in each patient?