What tissue lines the digestive tract?
a. connective
b. muscular
c. cartilage
d. epithelium
e. neural
D
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What, if anything, distinguishes learning from memory?
A. Learning is the process of acquiring new information while memory is the retention of that information over time. B. Memory is the process of acquiring new information while learning is the retention of that information over time. C. Both learning and memory are the process of acquiring new information. D. Both learning and memory are the retention of information over time. E. Memory does not require prior learning.
In order for bacteriophage to be released from the host by a lysis mechanism, enzymes are required that
A. halt ATP synthesis. B. stabilize the cytoplasmic membrane and cell wall. C. degrade the host chromosome. D. damage the cell wall and cytoplasmic membrane.
The significance of Fred Griffith's experiment in which he used two strains of Streptococcus pneumoniae is that
a. the semiconservative nature of DNA replication was finally demonstrated.
b. it demonstrated that harmless bacterial cells had become permanently transformed through a change in the bacterial hereditary system.
c. it confirmed that each cell of a given species contains the same amount of DNA.
d. it demonstrated that radioactively labeled bacteriophages transfer their DNA but not their protein coats to their host bacteria.
e. it demonstrated that mice can change the hereditary content of bacteria.
The cuticle helps a plant conserve water by ____.?
a. covering the stomata
b. reducing a plant’s capacity for photosynthesis
c. absorbing visible light
d. restricting the amount of water a plant’s root absorbs
e. restricting the amount of water vapor that diffuses out of aboveground parts.