Why would a temperature increase of only a few degrees be so damaging to the tundra ecosystem? A. The active soil will freeze up because it is well insulated, and this would cause plants to die.
B. Producers that grow best in colder temperatures would be less available to consumers that eat them.
C. Permafrost would melt which would cause a release of huge amounts of methane gas.
D. Plants and animals from colder ecosystems would begin to move into the tundra ecosystem.

answer

crater lake was formed when mount mazama produced a large eruption and collapsed to form a caldera, which then filled with water forming a lake.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."