In aerobic cellular respiration, the ETC receives electrons directly from
A) NADH and FADH2.
B) NADH and ATP.
C) FADH2 only.
D) NADH only.
E) ATP only.
A
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Plant growth that elongates stems occurs in the:
A. shoot apical meristem. B. root apical meristem. C. shoot lateral meristem. D. root lateral meristem. E. internode.
An elevated IgM titer typically indicates an active infection while an elevated IgG titer does not distinguish between active and past infections.
Answer the following statement true (T) or false (F)
Which category of bacteria provides the greatest benefit to production of crop plants?
a. spirochetes b. heat-loving T. aquaticus c. nitrogen-fixing bacteria d. Agrobacterium e. L. acidophilus
What contribution did Charles Lyell make?
A) He found some bird specimens on the Galapagos Islands. B) He found some fossils of extinct species. C) He suggested that life evolves through physical changes within the life span of an organism. D) He provided the first evidence that the Earth is much older than was previously thought.