In some individuals, G-A-G, the codon for glutamic acid, is changed to G-U-G, the codon for valine. This error causes misshapen red blood cells. The genetic disorder
is known as

A. Albinism
B. Sickle cell anemia
C. Hemophilia
D. Tay-Sachs

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

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-lavira: )