The Earth consists of a variety of different organisms. Despite their diversity, however, some similarities on the structural and metabolic levels may be seen. These similarities can be attributed to A.
the ability of all organisms to interbreed and produce new species.
B.
the ability of organisms to readily adapt to sudden environmental changes.
C.
similarities among organisms in their proteins and nucleic acids.
D.
similarities in organisms' habitats and niche

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

on the planet jupiter, the acceleration due to gravity is approximately 26 m s2 , roughly 2.7 times the acceleration due

answer;

medical directors

explanation;

medical directors grants and supervises the privilege or permission to use an aed on an ambulance.

other roles of a medical director includes;

-provide medical leadership, including coordination with local ems and 911 centers.

-provide guidance in equipment selection and deployment

-develop guidelines for responder actions

-oversee medical care that is rendered through the program, including review of all responses to medical emergencies

-ensure appropriate initial training and skill maintenance

-assume overall responsibility for the conduct and operation of all patient care related activities