The following is a list of several levels of organization that make up the human body: 1. tissue 2. cell 3. organ 4. molecule 5. organism 6. organ system The correct order from the smallest to the largest is:
2, 4, 1, 3, 6, 5
4, 2, 1, 6, 3, 5
4, 2, 1, 3, 6, 5
4, 2, 3, 1, 6, 5
6, 4, 5, 2, 3, 1
Which of the following is a buffer zone between the outside world and most of the cells of the body?
blood
lumen
lymph
extracellular fluid
All of the answers are correct.
Homeostasis is the ability of the body to
prevent the external environment from changing
prevent the internal environment from changing
quickly restore changed conditions to normal
ignore external stimuli to remain in a state of rest
prevent excessive blood loss
Cells regulate their level of activity by regulating the amount of proteins present in the cell at any given time, so an up regulating of enzymes would be expected to
increase the level of productivity of chemical reactions that rely on them
decrease the level of productivity of chemical reactions that rely on them
increase the rate of reactions catalyzed by the enzymes
decrease the rate of reactions catalyzed by the enzymes
both decrease the level of productivity of chemical reactions that rely on them and decrease the rate of reactions catalyzed by the enzmyes
