Help me PLEASE! Choose one answer! First one to answer get Brainliest! 13.) Remnants of organs or bones that have no use now in the organisms but may have for their common ancestors…

A.) Homologous Structures
B.) Embryo
C.) Vestigial Structures
D.) Fossil Record

Vestigial structures

Explanation:

Vestigial structures serve little or no purpose for an organism. An example being the human tailbone which at one point might have been a tail, but serves no real purpose now since we're bipedal organisms

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%.