Question 1

(Multiple Choice)

Refer to the figure.
Refer to the figure.   On Mount St. Helens, the intensity of disturbance ranged from extremely high (lava dome, pumice plain) to moderate (mudflow zone, blowdown zone), to low (scorch zone).  -In which area is the abiotic stress of low nitrogen availability most likely to control succession? A) Pumice Plain B) Mudflow zone C) Blowdown zone D) Scorch zone On Mount St. Helens, the intensity of disturbance ranged from extremely high (lava dome, pumice plain) to moderate (mudflow zone, blowdown zone), to low (scorch zone).
-In which area is the abiotic stress of low nitrogen availability most likely to control succession?


A) Pumice Plain
B) Mudflow zone
C) Blowdown zone
D) Scorch zone

Answer

A