The sarcolemma is (the) endoplasmic reticulum of skeletal muscle fibers. cytoplasm of skeletal muscle fibers. cell membrane of skeletal muscle fibers. extension of the skeletal muscle cell membrane into the cell. none of the above.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.

a. an idea which cannot be disproven!

explanation:

the ems is the abbreviation for the emergency medical services. it is a service provided by a group of medical professionals specialised doctors and other healthcare staff.

any one can call 911 in case of any medical emergency and a group of health care professional will come and give the treatment required. every day the ems staff receive many phone call, which are related to different types of medical emergencies, out of which 25-28% are exclusively related to the respiratory issues.

so, the correct answer is 25-28%.