Plant meristematic cells _____
A) are distributed evenly in all tissues throughout the plant
B) are undifferentiated cells that produce new cells
C) increase the surface area of dermal tissue by developing root hairs
D) subdivide into three distinct cell types named parenchyma, ground meristem, and procambium
B
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Which are important factors that affect population sizes?
a. Generation timing b. Immigration of organisms c. All of these choices d. Mortality rate
Which of the following is(are) true about
predator-prey coevolution? a. Each species exerts selection pressure on the other. b. Predators are selective agents that favor improved prey defenses. c. Prey with better defenses are selective agents that favor better predator hunting skills. d. All of the above are true. e. None of the above are true
What risk may result from mixing alcohol with energy drinks?
A) Large amounts of alcohol are digested in the stomach. B) Less urine will be formed when drinking alcohol. C) More alcohol will be released through exhalation. D) Energy drinks may mask the true intoxicating effects of alcohol.
Adult Culex pipiens mosquitoes are found above ground in London whereas Culex pipiens molestus mosquitoes are found below ground (in the subway system). These two forms mate in different types of spaces
When forced to cross, no offspring are produced. These two populations are an example of: a. evolutionary species. c. biological species. b. phenetic species. d. phylogenetic species.