In three sentences or less, explain why a plant placed in a window grows toward the light. What will be an ideal response?
Light causes auxin to move from the sunny side of the stem to the shaded side. This
accumulation of auxin stimulates cell elongation on the shaded side. Consequently the shaded
side grows more than the sunny side, and the plant grows toward the light.
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Microbial species are collections of strains that share many stable properties in common but differ significantly from other strains.
Answer the following statement true (T) or false (F)
Bile is crucial for ______ digestion because of its function in _____.
A. protein, protecting the stomach lining B. fat, solubilizing glycerol:fatty acid bonds C. nucleic acids, uncoiling DNA strands D. fat, emulsification E. protein, lyophilization
Yeast are
a. single-celled fungi. b. multicellular plants. c. single-celled plants. d. single-celled protists. e. multicellular fungi.
In science, graphs are often used to display data collected from an experiment. Which one of the following is TRUE regarding a graph?
A) Most graphs are plotted on three axes. B) The dependent variable is plotted on the y-axis. C) Independent variables are generally not included on a graph. D) The horizontal axis is known as the ordinate. E) Graphs always involve plots of individual data points.