Why does secondary succession occur faster than primary succession? A. fewer changes must occur in secondary succession
B- There are more pioneer species in secondary succession
C-The environmental conditions are more extreme in primary succession.
D-There are more trophic levels in secondary succession

The questions below will determine which restriction enzyme should be used to make a plasmid that contains both an intact vgp gene and a functional ampr gene. answer questions 1–4 by selecting from the answer choices on the left. drag the correct answer to the right of each question.

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which step is not included in the step approach to calculating the greatest common divisor?