Both primary and secondary succession begin with pioneer species that — A. change the area and make it safer from predatory organisms B. invade the area so that new organisms cannot be established C. modify the area and allow larger and more complex organisms to appear D. use up all the existing resources and prevent establishment of non-native organisms (PS its science but science wasnt an option)

mercury

explanation:

mercury is the least dense because of its size

answer: administrative medical assistants are trained professionals working in a role that requires them to provide customer service when working with patients, as well as administrative support for medical facility staff.

with the mandates put in place by hipaa and jacho, administrative medical assistants must also stay current on all regulations and policies regarding the collection, storage, and dissemination of sensitive patient data.

administrative medical assistants are responsible for a multitude of tasks that include communicating with patients, scheduling appointments, electronic medical coding, filing insurance claims, maintaining records, as well as accounting and billing. administrative medical assistants are key players in providing healthcare facility support services. they are responsible for everything from making sure medical records are accurate to ensuring that medical facilities run smoothly.

explanation: muahahaha