(1) Kepler's Third Law states that the period of a planet is related to 
the the semi-major axis of the orbit according to

 - (b) P^2 \propto a^3

(2) When we infer the mass of a planet using the Doppler technique the 
mass estimate is approximate because

 - (a) the orbit of the planet may be inclined relative to the line of 
sight

(3) Of the extrasolar planets detected so far, their masses are 
mostly

 - (c) 1-10 Jupiter masses

(4) Of the extrasolar planets detected so far, their semi-major axes 
are mostly

 - (b) Less than 2 AU

(5) For the purposes of this course, the working definition of life we 
will use is

 - (b) Something with the capacity for self replication and the 
capability to undergo Darwinian evolution 

(6) Evolution is troubling from a physics perspective because

 - (d) None of the above - evolution isn't troubling from a physics 
perspective

(7) The most common elements in the Earth as a whole are

 - (b) O and Fe\\

(8) If there are 20 amino acids used to make a protein, in a protein 
chain of length N there are

 - (c) $20^N$ possible arrangements\\

(9) The nucleotides from which DNA is polymerized contain

 - (a) a phosphate group, sugar and base

(10) The ``RNA world" hypothesis is that

 - (b) Life first evolved using RNA and converted to DNA at a later 
date