Using the following words, explain the difference between DNA and RNA.

Nucleus, uracil, double helix

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.

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

If a grape were placed in a hypertonic solution what would happen and why?