Which of the following structures is a stem adaptation instead of a root adaptation?
A. tubers
B. corms
C. stolons
D. rhizomes
E. These are all are stem adaptations.
Answer: E
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George Beadle and Edward Tatum created a collection of mutants to study the following pathway
A mutant shows no growth on minimal media; however it shows growth if citrulline is provided. These results indicate the mutation would most likely be in the gene for: A. Enzyme I. B. Enzyme II. C. Enzyme III D. either Enzyme I or Enzyme II. E. either Enzyme II or Enzyme III.
The structure that easily distinguishes a plant cell from an animal cell is
A. chloroplasts. B. the nucleus. C. the plasma membrane D. the Golgi apparatus. E. mitochondria.
What comprises the middle layer of healthy soil, between the top and base layers?
A) only recently eroded rock B) only decomposing animal wastes C) only dead plants, animals, and other organisms D) a mixture of eroded rock and decaying matter
Where is the primary meristem located?
A. root and stem tips B. vascular tissue C. dermal tissue D. stem tip only E. woody stem