An experiment was designed to determine whether or not ultraviolet light affected the growth of lichens. two groups of lichens were grown under identical conditions, in visible light, except one group of lichens was also exposed to uv light while the other was not. in this experiment the group of lichens grown in visible light without uv light is known as the a. control. b. hypothesis. c. dependent variable. d. limiting factor.

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: