According to cell theory, viruses are considered nonliving because they
a)
do not contain organelles.
b)
do not contain organic compounds.
c)
cause diseases in other organisms.
d)
lack the ability to reproduce without a host.

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen

Why should organisms reproduce more offspring than will survive? select all that apply.