Looking at other species of finches… During drought years on the Galapagos, small, easily eaten seeds become rare; large, hard-cased seeds are left.   Only birds with large beaks can eat the hard-cased seeds.  Over time the average size of the beaks in a bird population increases.  This is an example of    

As you know, we use animal models to study human disease.  The EAE (experimental allergic encephalitis) mouse is used for research on multiple sclerosis.  EAE mice have defective myelin sheaths on CNS nerve cells.  Which of the following statements about EAE mice is ACCURATE?

You are a paleontologist (someone who studies fossils) and after spending many years collecting fossilized  shells from different layers of sediment. You estimate that the oldest shell you found is 8 million years older than the most recently fossilized shell you found. Based on your where you found your shells (depicted in the image below), what can you reasonably conclude about the evolution of the snail shells you collected?  

Referring to the age structure diagrams above, which of the following statements in ACCURATE?

Match the scientist with their thoughts/works that influenced Charles Darwin

Which of the following is NOT accurate about the hypothalamus?

Which diagram above has the arrows pointing in the correct direction with regards to energy flow? [1] Which terms correctly describe the rabbit? [2]

What are bond angles in CCl4 molecule?

Phase changes, such as melting, freezing, boiling, occur at the constant temperature.

Match the symbol of element with its number of valence electrons.