Which of the following approaches is likely most successful to prevent soil erosion?
(a) Farming using contour tillage
(b) Fungal phytoremediation
(c) Drip irrigation
(d) Condensing the soil with heavy machinery
Ans: (c) Drip irrigation
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Organisms sense and respond to changes both inside
and outside the body by way of a. metabolism. b. photosynthesis. c. receptors. d. catabolism. e. anabolism.
Most pathogens that gain access through the uninjured skin
A) Just infect the blood below the skin. B) Penetrate a cut or puncture. C) Must be injected. D) Enter through hair follicles and sweat ducts on the skin. E) Must be carried by a parasite to allow them to penetrate.
Put the following terms in the correct order from start to finish.
A. chromosome ? gene ? primary transcript ? messenger RNA ? protein ? polypeptide B. gene ? messenger RNA ? primary transcript ? chromosome ? protein ? polypeptide C. chromosome ? gene ? primary transcript ? messenger RNA ? polypeptide ? protein D. gene ? chromosome ? messenger RNA ? primary transcript ? protein ? polypeptide E. primary transcript ? chromosome ? gene ? protein ? polypeptide ? messenger RNA
The site on the enzyme surface where the reactant binds is referred to as the:
A. allosteric site B. binding site C. active site D. reactive site