Asexual reproduction _____.
A) is used exclusively by prokaryotes
B) occurs only in single-celled organisms
C) requires only one parent
D) creates unique combinations of traits
E) increases the genetic variability of the offspring
Answer: C) requires only one parent
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When studying phenotypic variations due to the environment, it is necessary to compare organisms with identical genotypes. In addition, it is necessary to use identical environments when studying variation in genotypes
A. true B. false
The technique that allows one to record ion currents passing through individual channels is known as
A) voltage-gating. B) ligand-gating. C) patch-clamping. D) ion sensors. E) ionophores.
Exoenzymes from pathogens are called virulence factors.
Answer the following statement true (T) or false (F)
Escherichia coli belongs to the
A) proteobacteria. B) gram-positive bacteria. C) green sulfur bacteria. D) spirochetes. E) actinomycetes.