1) the northern copperhead is agkistrodon contortrix contortrix, the southern
copperhead is agkistrodon contortrix mokasen, and the cottonmouth is agkistrodon
piscivorous. therefore,
a. all are subspecies of agkistrodon.
b. they are three distinct species.
c. the copperheads are subspecies and the cottonmouth is a separate species.
d. they are all the same species.
2) isolating mechanisms that prevent reproductive attempts or make it unlikely that
reproductive attempts will be successful are referred to as
a. prezygotic reproductive isolating mechanisms.
b. a lack of f2 fitness.
c. postzygotic isolating mechanisms.
d. two of theseare correct.
e. none of the above.
3) identify the correct pairing of respiratory disorders and symptoms.
a. common cold – sneezing, runny nose and a mild fever.
b. asthma – coughing, wheezing and shortness of breath.
c. pneumonia – bronchi are filled with fluid and pus causing coughing and difficulty
breathing.
d. pulmonary tuberculosis – lung cells build tissues around the invading bacterium
causing the elasticity of the lungs to decrease.
e. all of the pairings of respiratory disorders and symptoms are correct.
4) while we are sitting down to lunch we are consuming _______ energy which will
then be converted into ______ energy as we work until dinner time.
a. potential, kinetic
b. kinetic, potential
c. kinetic, free
d. potential, stored