4. The river source supports little life outside of invertebrates. For each of the organisms listed below, give one adaptation that helps them to survive in this harsh environment. Hellgrammite -
Black Fly Larvae -
Bamboo Shrimp -

the answer is c

explanation:

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

not sure if this is what you'r looking for eubacteria and archaebacteria