In the mid-1900s, the Soviet geneticist Lysenko believed that his winter wheat plants, exposed to increasingly colder temperatures, would eventually give rise to more cold-tolerant winter wheat
Lysenko's attempts in this regard were most in agreement with the ideas of _____. A) Cuvier
B) Lamarck
C) Darwin
D) Lyell
B
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If you allowed 10 identical parallel Salmonella cultures to evolve for 10,000 generations under new growth conditions with very little nitrogen, the parallel cultures would
A) evolve identical adaptations to use the nitrogen source provided in the media. B) not change or adapt very much over this small number of generations. C) each accumulate different random mutations resulting in different adaptations to use the nitrogen in the media. D) direct mutations to occur in nitrogen utilization and uptake genes in order to adapt rapidly to the culture conditions.
Sustainability can be achieved by
a. fixing products that we are currently using instead of throwing them away. b. recycling. c. reducing our consumption of goods. d. reducing our energy consumption. e. all of these
Melanoma is the most serious form of skin cancer.
Answer the following statement true (T) or false (F)
Which of the following bacterial genera plays an important role in environmental nitrogen cycles?
A) Nitrobacter B) Rhizobium C) Azospirillum D) both Nitrobacter and Rhizobium E) Nitrobacter, Rhizobium, and Azospirillum