Answer:
C. Primary succession occurred, followed by several secondary successions.
Explanation:
Primary succession only occurs from bare rock and soil (caused by the volcano eruption in this case). When plant life suffered from forests fires, life was still left behind to continue growth, so these would be considered secondary successions.
Answer: The parasympathetic nervous system and sympathetic nervous system play opposite roles
Explanation:
To ensure a stable internal environment (homeostasis) is achieved, the parasympathetic nervous system (PNS) and sympathetic nervous system (SNS) play OPPOSITE roles.
The PNS dominate during relaxed periods and stimulates the
- liver to break down glycogen
- constriction of bladder to pass out urine
- increases heartbeat
- dilate pupils etc
The SNS, in contrast dominate in times of emergency or stressful periods and do the EXACT opposite of the processes mentioned above.
Thus homeostasis is maintained
I think b. If that’s wrong plz say me to know it!