Name two common characteristics crayfish share with annelids

Crayfish belongs to the class arthopoda.  

Thus in this way the common characteristics of kingdom annelids and arthopda are –  

1 The body of both the annelids and arthopoda is segmented. Annelids have several segments in their body with each segment having all essential body systems for life such as respiratory system , nervous system etc. while the crayfish (arthopods) has two body parts a)  cephalothorax having  head and upper body b) segmented abdomen.  

2. They both  live in water  

the answer is c because it is most logical.

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%.