Consumer fears and uncertainty about the safety of cloned milk and meat have prevented these products from being
sold in stores even though the ____________________ has ruled that such food is safe. Fill in the blank(s) with the appropriate word(s).
FDA
Food and Drug Administration
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Ascomycete yeasts evolved from multicellular ancestors
A. true B. false
____________________ are organic molecules that include simple sugars, starches, glycogens, and celluloses
Fill in the blank(s) with correct word
In Engelmann's classic experiment, why were the oxygen-requiring bacteria clustered around the regions of Spirogyra algae that were bathed in red, blue, and violet light?
a. Chlorophyll is green and thus reflects green light. b. The bacteria were immobile and that is where Engelmann happened to place them. c. Photosynthesis is most active in those wavelengths of light and thus more oxygen is consumed by the algae in those regions. d. Photosynthesis is most active in those wavelengths of light and thus more oxygen is produced by the algae in those regions. e. The most energy-rich wavelengths of light are found at the edges of visible and nonvisible light (ultra violet and infrared).
The atomic number of an atom refers to its ____
a. mass or weight b. number of protons c. number of protons and neutrons d. number of neutrons e. number of electrons