Which example best describes life in the Precambrian era a)only bacteria and algae are alive.
b)flowering plants are the dominant plant life, humans convert open spaces to farm land.
c) first flowering plants appear on land, dinosaurs roam the earth.
d)marine organisms are dominant, small organisms begin to move onto land.

answer: c. two haploid cells

explanation:

point counts

mark brainliest!

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