Cells can conduct many tasks, including which of the following?
duplicate themselves
convert energy
selectively exchange materials
all of the above

Classify the structures as homologous or analogous, depending on their structure and function.

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated

Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear