Dr. gregg is studying lions in their natural habitat. what can dr. gregg do to ensure the ethical treatment of the lions and the safety of both the lions and himself?
a. observe the lions from a distance
b. try to prey escape when the lions hunt
c. all of these

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

In which part of the body is a ball-and-socket joint found?

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.