The internal urethral sphincter is composed of smooth muscle, and the external urethral sphincter is composed of skeletal muscle; together, they control the process of urination
Indicate whether the statement is true or false
TRUE
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Who first demonstrated transformation using mice and two strains of Streptococcus pneumoniae?
A. Hershey and Chase B. Watson and Crick C. Jacob and Monod D. Avery, McCarty, and MacLeod E. Griffith
As a plant cell grows a new cell wall the secondary wall forms
A. outside of the primary cell wall. B. in the middle lamella C. between the primary cell wall and plasma membrane. D. in the cytoplasm E. inside of the plasma membrane.
Anaerobic bacteria may use ________ as the final electron acceptor during anaerobic respiration
A) nitrate only B) carbon dioxide only C) sulfate only D) both nitrate and sulfate E) carbon dioxide, nitrate and sulfate
The characteristic feature that applies to all microorganisms is
a. they are multicellular b. they perform photosynthesis c. their cells have distinct nuclei d. they are visible only with a microscope