Cancer is all of the following except
a. capable of affecting different cells and tissues.
b. characterized by uncontrolled cell division.
c. capable of metastasizing.
d. a simple disease.
e. characterized by viable changes in cell characteristics.

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits