Which of the following is asserted by the unified cell theory?
a. The cell serves as the basic unit of life.
b. All living things are composed of at least two cells.
c. Very few new cells develop from existing cells.
d. Organisms serve as the building blocks of cells.
a. The cell serves as the basic unit of life.
The cell serves as the basic unit of life is asserted by the unified cell theory.
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Which cross-section of a tree demonstrates
significant system acquired resistance? a. A b. B c. C d. None of these e. All of these
The xylem primarily transports ________, while the phloem primarily transports ________
A) sugars; water and minerals B) oxygen and carbon dioxide; sugars C) water and minerals; sugars D) water and minerals; oxygen
What characteristic does Typhoid Fever not have?
What will be an ideal response?
All mammals have three middle-ear bones which evolved from
A. wing bones of birds. B. bones in the reptile jaw. C. cartilage of shark skeletons. D. jaws of fishes.