Which of the following is a common function of stems but NOT of roots?
A) Absorption B) Anchorage C) Support D) Storage
C
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The most significant finding from the "split brain" patients studied by Roger Sperry and his collaborators was that
A. in most human brains, the left hemisphere is specialized for processing verbal and symbolic material; the right hemisphere is specialized for visuospatial and emotional processing. B. the right and left hemispheres are mirror images of each other and equally dominant in producing and understanding language in humans. C. to evaluate the functional capacity of each hemisphere in split-brain patients, it is essential to provide information to one side of the brain only. D. the severing of the corpus callosum is a necessary and effective remedy for halting grand mal seizures in epilepsy.
Where would you predict an facultative anaerobe would grow in a tube of fluid thioglycollate medium?
At or very near the surface of the broth A little below the surface of the broth Throughout the tube At the bottom of the tube
Select the ultimate source of energy for nearly every organism on this planet.
A. ATP molecules B. Plants C. The sun D. Sugars
Which of the following is not an accurate statement describing the contributions of researchers to the structure of DNA?
A. Erwin Chargaff determined that the percent of adenine was equal to the percent of thymine and the percent of guanine was equal to the percent of cytosine. B. Watson and Crick used the work of previous researchers, including Chargaff and Franklin to determine the overall structure of DNA with sugar and phosphate components making up the strands with the nitrogenous bases in the interior. C. Rosalind Franklin used X-ray crystallography to determine that DNA was a double helix in shape. D. Alfred Hershey and Martha Chase injected viruses into mice to determine that the inheritable material was DNA and not protein.