The part of a flower that is sticky to collect pollen is the
a. carpel.
b. sepal.
c. stigma.
d. style.
C
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The environment of human skin requires an adaptation for microbes that can tolerate moderately ________ conditions.
A. halophilic B. alkaline C. anaerobic D. thermophilic E. psychrophilic
Rubbery cartilage, calcium-hardened bone tissue, lipid-storing adipose tissue, and blood are examples of specialized
____________________ tissues. Fill in the blank(s) with the appropriate word(s).
Gametic incompatibility is an example of
A) hybrid inviability. B) a premating isolating mechanism. C) a geographic isolating mechanism. D) a postmating isolating mechanism.
In a diploid organism, the DNA encoding one of the tRNAs for the amino acid tyrosine is mutated such that the sequence of the anticodon is now 5?-CTA-3? instead of 5?-GTA-3?
What kind of aberration in protein synthesis will this tRNA cause? Explain your answer.