Prop roots are more common in:
a. annuals.
b. eudicots.
c. monocots.
d. epiphytes.
e. parasitic plants
c
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The shape of a particular cell is often determined by its __________
a. cytoskeleton b. plasma membrane c. cytoplasm d. nucleus
Movement of a molecule against a concentration gradient occurs in:
a. simple diffusion b. facilitated diffusion c. osmosis d. active transport e. passive transport
DNA is found in every cell of an organism. What subset of DNA changes would be most useful to molecular biologists to determine evolutionary relationships?
A) DNA changes that occur in genes specific to organisms in one kingdom B) DNA changes in genes that are shared by a common ancestor C) DNA changes in genes that occur in body cells and cannot be passed to offspring D) DNA changes in genes that do not generally code for any function
Which statement is true?
(a) Roots gain length primarily through cell division (b) Roots gain length primarily through elongation growth