Manny's trainer wants him to do some anaerobic exercises to prepare for his upcoming competition. which of the following would be the best option?

running
tennis
lifting weights
dancing

While ice skating, alice slipped and injured her knee. what is one way alice might prevented this injury?

True or false. mucous membranes secrete mucus that traps pathogens.

Investigator a has biological specimens that are coded and linked to identifiers of the source individuals. investigator a provides the specimens to investigator b but does not provide the individual identifiers. investigator b agrees not to re-identify the source individuals. is investigator b's research using the biospecimens human subjects research according to the definition of human subjects research in the federal regulations?