What age group is most likely to understand instructions?

babies

teens

toddlers

all children can understand instructions equally

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?

1. keisha’s brother was killed in a car crash. the person who was driving the car was not injured. keisha feels powerless. she misses her brother. she resents the fact that the driver continues to attend her school and seems unaffected by her brother’s death. what is the stage of grief? anger depression denial or numbness(one answer) hope remorse

Which of the following contains the most calories/gram?