Viruses contain ________ as their genetic material.
A. carbohydrate
B. DNA and RNA
C. RNA or DNA
D. protein
Answer: C
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Refer to the figure above. Why is it important to preserve the red panda?
A) The group has very few representatives of its lineage. B) The group is particularly sensitive to environmental disturbances. C) The group has low genetic diversity. D) The group is economically important. E) All of the lineages in the figure above are important to preserve.
The following bacterial species are all implicated in dental caries EXCEPT
A) Fusobacterium. B) Borrelia. C) Streptococcus. D) Lactobacillus.
A molecule that can donate H+ to solution is called a base.
a. true b. false
The “lub” heart sound is produced by closure of the ____________________ valves. Fill in the blank(s) with the appropriate word(s)