Venus flytraps catch insects in order to supplement their input of
A) magnesium. B) nitrogen. C) phosphorus. D) meat. E) potassium.
B
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Vaginal acidity in the adult female is due to acid production by Lactobacillus acidophilus
Indicate whether the statement is true or false.
Using the great lubber grasshopper as a model, Walter Sutton observed:
A. separation of maternal and paternal chromosomes during mitosis. B. replication of chromosomes during meiosis. C. crossing over of homologous chromosomes. D. pairing of homologous chromosomes during mitosis. E. pairing of homologous chromosomes during meiosis.
In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the 32P radioisotope
Indicate whether the statement is true or false
How might a plant cope with the fact that the Calvin cycle uses more ATP than NADPH, yet produces roughly the same amount of both energy intermediates in photosystems I and II?
A. Photosynthesis can revert from a noncyclic to cyclic electron flow. B. More pigment can be rapidly layed down for greater photosynthetic capacity. C. Plants often increase the amount of NADP reductase. D. Electron flow rate can be increased. E. Increase the electrochemical gradient for H+ across the thylakoid membrane.