What structure do myelin sheaths form along?
A. Cell bodies
B. Dendrites
C. Ganglia
D. Axons
E. Neuroglia
Answer: D
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The process in which NH4+ is oxidized to NO3- is called ____
a. nitrification b. ammonification c. nitrogen cycling d. nitrogen fixation e. nitrogen assimilation
How many levels of consumption are depicted
in the figure? a. 1 b. 2 c. 3 d. 4 e. 5
Cows are able to survive on a diet consisting almost entirely of cellulose because
A. cows have cellulose-digesting, symbiotic microorganisms in their rumens. B. cows are autotrophic. C. unlike humans, the saliva the cow produces has enzymes capable of digesting cellulose. D. cows can manufacture all 20 amino acids out of sugars in the liver.
In contrast with euchromatin, heterochromatin contains more genes and is earlier replicating
Indicate whether the statement is true or false