The observation that atmospheric CO2 levels were typically low during glacial periods in Earth's history is an example of _________________
A. causation
B. correlation
C. communication
B
You might also like to view...
Each of the major hypotheses proposed to explain why sexual reproduction is more widespread than asexual reproduction ultimately base their explanations on the adaptive benefit of (select all correct choices):
A. forming pair bonds. B. forming genetically distinct offspring. C. forming large populations. D. forming relatively slow-growing populations. E. reducing mutation rates.
In land plants what % of the water transported by the xylem is used for metabolism?
a. 66% b. 85% c. 2% d. 32% e. 90%
A nerve cell ________ involves a temporary depolarization and repolarization of the cell membrane
Fill in the blank with correct word.
Two amino acids that are found in some proteins due to exceptions in the universal genetic code are ________.
A. lysine and cysteine B. lysine and selenocysteine C. pyrrolysine and cysteine D. pyrrolysine and selenocysteine