Alcohols are widely used as antiseptics and disinfectants because they are effective against endospores as well as vegetative cells.
Answer the following statement true (T) or false (F)
False
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A rhizome is a
a. fruit that is underground. b. leaf that is underground. c. root that is above ground. d. stem that is underground.
The carbon needed to build organic compounds in plants comes from ________, while the hydrogen and oxygen comes from ________.
A. carbohydrates; hydrogen and oxygen gasses in the atmosphere B. glucose; hydrochloric acid C. carbon dioxide; water D. oxygen in the atmosphere; hydrogen peroxide
The evolutionary link between unicellular and multicellular life was probably __________.
A. development of a specialized feeding mechanism B. development of a specialized method of waste disposal C. development of colonial forms where unicellular protists stuck together D. development of a specialized method of gas exchange
Which reproductive isolating mechanism is mostly restricted to animals?
A) behavioral B) geographic C) temporal D) ecological E) hybrid infertility