What is a main difference between primary succession and secondary succession? A. Primary succession happens slowly, and secondary succession happens rapidly.
B. Small plants grow first during primary succession, while large trees grow first during
secondary succession.
C. Primary succession occurs after a natural disaster, and secondary succession occurs
before a natural disaster.
D. Primary succession is the colonization of new sites, and secondary succession is
colonization of previously inhabited sites.

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Acell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process? (2 points)