Why must an in vitro observation be confirmed in vivo?
A. A living thing does not make its own enzymes.
B. A test tube is exactly like a living cell.
O
c. Some enzymes behave unnaturally in a test tube.
O
D. Observations in a test tube are easy to make.

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

What is the problem in this article? what solution does the article propose?

The nurse is liaising with the physical therapist and occupational therapist to create an activity management plan for a patient who has multiple sclerosis. what principle should be integrated into guidelines for exercise and activity that the team will provide to this patient in anticipation of discharge