Which chemical may be recycled from ammonia in the soil and then converted to organic proteins in plants?
A) nitrogen
B) glucose
C) water
D) ATP
A
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Which of the following scientist-discoveries is mismatched?
A. Watson, Crick, Wilkins, and Franklin-DNA structure B. Avery, MacLeod, and McCarty-DNA is the genetic material C. Meselson and Stahl-mechanism of DNA replication D. Griffith-chromosomes E. Hershey and Chase-DNA is the genetic material of bacteriophage
Action potential propagation is the fastest in ____
a. a myelinated axon with a small diameter b. an unmyelinated axon with a small diameter c. a myelinated axon with a large diameter d. an unmyelinated axon with a large diameter e. all myelinated axons regardless of diameter
The moss sporophyte is not ____, so it depends on the gametophyte for nourishment even when mature
a. photosynthetic b. vascular c. rooted d. leafy e. biologically active
Muscle contraction is an example of which of the following types of work?
A) heat B) mechanical C) bioluminescent D) electrical E) concentration