The practice of using bacteria to remove pollutants from the environment is called ________.
A. Transduction
B. Bioelimination
C. Nitrogen fixation
D. Bioremediaton
Answer: D
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Suppose you have identified a type of lizard that seems to have acquired a mutation in which hindlimbs are absent. Which gene, also responsible for the loss of limbs in snake, may be mutated in this animal?
A) Bicoid B) MONOPTEROS C) PHANTASTICA D) Cytoplasmic deteminants E) Sonic Hedgehog
Blood pressure is usually estimated from indirect measurements of the pressure in what structure?
A) left ventricle B) aorta C) femoral artery D) brachial artery E) radial artery
Lactose is a disaccharide found in milk. What makes some people "lactose intolerant" as adults?
A) Some people don't produce any enzymes, including the one needed to digest lactose. B) Lactose can only be digested by people who produce enough lipase to digest it. C) Lactose-intolerant people don't produce adequate amounts of lactase. D) The active site of the lactose-digesting enzyme can vary from person to person.
Which biological events took place during the Paleozoic Era and the Mesozoic Era?
A. During the Paleozoic Era, three mass extinctions occurred which led to the colonization of land by plants, while during the Mesozoic Era, gymnosperms became the dominant plant life. B. During the Mesozoic Era, five mass extinctions occurred which led to the colonization of land by plants, while during the Paleozoic Era, angiosperms became the dominant plant life. C. During the Paleozoic Era, five mass extinctions occurred which led to the colonization of land by plants, while during the Mesozoic Era, angiosperms became the dominant plant life. D. During the Mesozoic Era, three mass extinctions occurred which led to the colonization of land by plants, while during the Paleozoic Era, gymnosperms became the dominant plant life.