A dispersion pattern refers to ________
A) the density of organisms in a habitat
B) the extinction rates of a species
C) the spacing of organism throughout a habitat
D) the diversity of species found in a habitat
C
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Blood pressure is lowest when ventricles are _____; this is known as _____
a. fully relaxed; systolic pressure b. contracting; diastolic pressure c. contracting; systolic pressure d. fully relaxed; diastolic pressure e. in transition; systolic pressure
Which of the following is mismatched?
a. certain fungi; retinal destruction b. trachoma; damage to conjunctiva leading to blindness c. glaucoma; excess pressure of the aqueous humor d. astigmatism; vertical axis is longer than the horizontal axis of the eyeball e. cataract; gradual clouding of the lens
The primary structure of a protein
A) is important for determining the secondary and tertiary structure of a protein. B) is simply the order of amino acids from one end of the protein to another. C) is important both genetically and structurally. D) is the linear sequence of amino acids that are linked together by peptide bonds. E) All of these statements are true.
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.