If a ramp to the top of a 30 meter building at a construction site has a mechanical advantage of 4, how long must the ramp be?

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Select all that apply. why are common names not a good reference to a species? common names can be in different languages common names vary with location common names vary with culture common names vary with species color

The structure that houses the cells genetic information.