For a chemotherapeutic drug to be useful for treating cancer cells, which of the following is most desirable? With explanation please. A. It is safe enough to limit all apoptosis.
B. It does not alter metabolically active cells.
C. It only attacks cells that are density dependent.
D. It interferes with cells entering G0.
E. It interferes with rapidly dividing cells.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

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

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.