The element present in all organic molecules is _____
A) hydrogen
B) oxygen
C) carbon
D) nitrogen
C
You might also like to view...
Which of the following is false of appendicitis? a. Appendicitis is treated by removing the appendix surgically
b. Appendicitis can be fatal if the appendix ruptures. c. Cases of appendicitis generally resolve by themselves without treatment. d. Appendicitis is an inflammation of the appendix.
Which statement is true of carbon monoxide?
a. It is a waste product of photosynthesis. b. It is always present when organic material burns. c. It is harmless. d. It has a strong odor. e. It is a greenhouse gas.
What are plants that flower only once before they die, normally after two seasons of growth, called?
A. monocots B. annuals C. perennials D. dicots E. biennials
The time it takes for cells to divide
A. varies, but it takes sophisticated equipment to measure this small difference. B. depends on the health and environment of the cell. C. does not vary at all, but is controlled by an internal clock. D. varies widely and unpredictably in cells of the same local area of the same organism during any specific time period.