In Figure 23-2, the X points to a

a) guard cell.
b) mesophyll cell.
c) vein.
d) stoma.


Ans: d) stoma.

Biology & Microbiology

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Inside an active mitochondrion, most electrons follow which pathway?

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Natural selection acts directly on the genotype of an organism

_______ Indicate whether the statement is true or false.

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Our genetic information will be decided based on the order of nucleotides (G,C,A,T,) in our DNA.

a. true b. false

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The V domain of an immunoglobulin heavy chain is generated by somatic recombination of

a. V, D, and J genes. b. V and C genes. c. V and H genes. d. V and D genes. e. V, C, and H genes.

Biology & Microbiology