What can the reader conclude about ecosystems based on the information in this passage? Ecosystems are always distinctly different and unique.
Ecosystems are interrelated with other ecosystems surrounding or including them.
Ecosystems are slow-developing entities of biological communities.
Ecosystems are clusters of communal habitats in an area.

its probably to later but whats the question

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%.