Which of the following fruits are not classified as drupes?
A. cherries
B. pears
C. plums
D. olives
Answer: B
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Which of the following statements regarding the G1 (first gap) phase of the eukaryotic cell cycle is NOT true?
A. Most cells spend the majority of their lives in the G1 phase of the cell cycle. B. Cells that are terminally differentiated and will not divide mitotically might exit the G1 phase and enter the G0 phase. C. If environmental conditions are favorable during the G1 phase, G1 cyclins are degraded causing the cell to prepare to replicate its DNA. D. The G1 phase is only part of interphase. E. If DNA is heavily damaged, checkpoint proteins will delay the cell cycle; the damage will either be fixed or cell division will be permanently stopped.
An animal's circulatory system should contain all of the following EXCEPT
a. blood to transport carbon dioxide and oxygen. b. blood vessels leading away from the heart. c. blood vessels leading to the heart. d. a heart to pump the blood. e. nitrogen to transport wastes
The average American uses as many resources in one day as 370 Ethiopians
Indicate whether the statement is true or false
In the island biogeography model, species richness is a balance between
A. immigration and extinction. B. speciation and extinction. C. inhibition and facilitation. D. tolerance and inhibition. E. emigration and speciation.