Community
What will be an ideal response?
The assemblage of plants, animals, and other organisms living in the same place, which interact and affect each other (or restrict to one taxa, e.g. birds)
Interactions among populations
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In the human body, cilia play an important role in the function of each of the following organs
EXCEPT ____.
a. ventricles of the brain b. oviducts of the female reproductive system c. upper respiratory tract d. ventricles of the heart
Which chamber of the heart will initially receive the oxygen poor blood from the body? a. Right ventricle b. None of these choices
c. Left atrium d. Right atrium e. Left ventricle
Cytoplasmic localization refers to ________
a. the uneven distribution of cellular components within the cytoplasm b. the consumption of the cytoplasm during embryonic development c. the even distribution of cellular components within the cytoplasm d. the division of the cytoplasm e. the formation of additional cytoplasm
Why does DNA synthesis only proceed in the 5? to 3? direction?
a. Because DNA polymerases can only add nucleotides to the 3? end of a polynucleotide strand. b. Because the 3? end of the polynucleotide molecule is more electronegative than the 5? end. c. Because that is the direction in which the two strands of DNA unzip. d. Because that is the only direction that the polymerase can be oriented. e. Because the chromosomes are always aligned in the 5? to 3? direction in the nucleus.