Consider the following three communities and decide which answer correctly describes the species diversity of these communities:   Community A Community B Community C # individuals of species 1            18          92         10 # individuals of species 2            21            2         10 # individuals of species 3            20            2          60 # individuals of species 4            19            2          10 # individuals of species 5            22            2          10

Natural selection operates to bring about evolution due to:

Discuss at least three major causes of biodiversity declines, in each case explaining how or why species can be driven to extinction.

Someone dumps 192 four-sided dice onto a table and count the number of fours that come up.  Use a normal approximation to a binomial to answer questions b and c.   a) What are the mean and standard deviation of the distribution?   b) Find the probability that more than 44 fours are seen?   c) Find the probability that exactly 46 fours are seen?

The Treaty of Locarno

The term Mahatma means

What foreign policy strategy did George Kennan advocate in a 1947 Foreign Affairs article?

Which of these choices is NOT a correct description of a factor that contributes to the color of a person’s skin?

Assuming Figure 3 is an adult femur, what would you expect to find in the open spaces at the arrow?

What kind of tissue would you expect to find lining the inside of the digestive tract?