IR absorbed by a molecule causes its bonds to break.
a. true
b. false
b. false
Biology & Microbiology
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In which of the following ways are archaeans
similar to eukaryotic cells? a. size b. shape c. presence of histones d. DNA polymerases e. presence of operons
Biology & Microbiology
Each species occupies a certain __________characterized by physical and chemical features and by
the array of other species living in it. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Laboratory animals must be used to determine lethal and infectious doses of viruses.
Answer the following statement true (T) or false (F)
Biology & Microbiology
By definition, prokaryotic cells do not possess __________
(a) a nucleus. (b) replication machinery. (c) ribosomes. (d) membrane bilayers.
Biology & Microbiology