The large-scale community of organisms in a major ecological setting is a(n) ____
a. environmental system
b. habitat
c. biome
d. ecosystem
e. niche
ANSWER: c
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In addition to investigations with bacteria that led to him being considered the Father of Microbiology, Pasteur also
A. found that some molecules can exist as stereoisomers. B. created aspartame. C. separated organic acids using a microscope. D. discovered polarized light. E. found that some molecules can exist as stereoisomers AND separated organic acids using a microscope.
The vesicles that initiate formation of a cell plate in plant cells are formed from plasma membrane and ________
a. rough endoplasmic reticulum b. smooth endoplasmic reticulum c. Golgi body d. lysosomes
What holds together the chromatid from one homologous chromosome to a non-sister chromatid of the other homologue at the site of a chiasma?
a) covalent bonds b) ionic bonds c) H bonds d) van der Waals forces e) disulfide linkages
Transfer of random pieces of DNA mediated by phage is known as
A) transformation of competent cells. B) generalized transduction. C) conjugation. D) transposition. E) specialized transduction.