AP Biology Free Response Practice Questions 9-12-12
1. The earth is a unique planet in our solar system. Give at least 3 PHYSICAL ways
the earth is different from the other planets. Explain how each of these
characteristics relates to the formation of life on our planet.
2. The Big Bang has become the most widely accepted theory explaining how our
universe began. Explain the basic concepts of the Big Bang then construct a
timeline that details the following:
- beginning of the big bang
- formation of the earth
- formation of the moon
- formation of the first living organisms
3. Our atmosphere may be the single most important factor in the development of
life on our planet. The primordial earth had no atmosphere. Explain how our
original atmosphere was formed, what it was composed of and if it was conducive
to the formation of living organisms.
4. Our current atmosphere is much different than the primordial one. Explain how
the primordial atmosphere evolved into our current atmosphere and how that may
have allowed for the formation of living organisms.
5. Liquid water appears to be an extremely important factor for the existence of life
here on our planet. The primordial earth had no water on it. Explain how water
was thought to have originally arrived to earth, the scientific evidence for this
process and how water evolved to cover 75% of our planet.
6. The formation of the first living organism is still a mystery. Outline and explain
the empirical (experimental or physical) evidence that may explain the origin of
life here on earth. Also explain where the original organisms had to have lived
and why.
7. The primordial earth had oxygen but not in a useable form for most current living
organisms. Explain how breathable oxygen originated on earth, the organisms
responsible for its formation and the evidence that exists to prove their origin.