Hydrogen bonds
A. result in the formation of salts.
B. result from the loss of neutrons by an atom.
C. involve the sharing of electrons.
D. are relatively weak and can be broken rather easily.
E. involve the loss and gain of electrons.
Answer: D
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Which of the following is correctly matched with its description?
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One of the earliest antimicrobials isolated from a bacterium was
A. penicillin. B. ampicillin. C. Salvarsan. D. streptomycin.
Which of the following purchases land and preserves it for ecosystems?
a. The Convention on International Trade in Endangered Species of Wild Fauna and Flora b. The Endangered Species Act c. The Nature Conservancy d. The Kyoto Protocol
Glycoprotein spikes are found on the capsids of all viruses
Indicate whether the statement is true or false