Which of the following best describes the primary function of typical leaves?
A) anchoring
B) photosynthesis
C) shade
D) storage of the sugars produced
B
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The microtubule-organizing center (MTOC)
A) serves as a site for microtubule and microfilament assembly. B) acts as an anchor for both ends of the microtubule. C) is associated with two centrioles in plant cells. D) is called a centrosome during interphase. E) is positioned near the cell membrane.
Humans acquire the arbovirus that causes epidemic encephalitis by
A. the fecal-oral route. B. human to human contact. C. contaminated food. D. the bite of an infected mosquito
Describe how the selective adhesion property of cells was proven
What will be an ideal response?
How have Alaskan salmon been genetically modified?
A) Bacterial genes have been inserted to resist invasive diseases. B) Genes from freshwater algae have been inserted for an internal energy source. C) Growth hormone genes from a faster growing fish species have been inserted. D) Genes for the overproduction of essential fatty acids have been inserted.