When an individual muscle fiber receives a threshold stimulus, it contracts as much as possible. ... a threshold stimulus is the minimum amount of energy needed to make a muscle fiber contract.
This is false...Hope this helps!! Tell me if im wrong though...
Answer:
I don't know the way they get babies
The answer is B. They do not usually bring precipitation.
High clouds appear in the highest levels of the troposphere. They are most brilliant white due to the ice crystals in this level. Sunlight passes through high clouds most of the time as it's thickness is relatively thin. There are three main types of high clouds: cirrus, cirrostratus, and cirrocumulus. These clouds usually develop on says with weather and lighter winds at the surface, generally these clouds do not produce precipitation except in some cases.
