Which is a reason why most exotic species’ introductions fail?
a. inability of the species to adapt to its new environment
b. close oversight by environmental regulatory agencies
c. overharvesting of the species for commercial purposes
d. limitations on the transportation of invasive species
a. inability of the species to adapt to its new environment
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What do the results of research on gravitropic responses of roots and stems show?
A) Different tissues have the same response to auxin. B) The effect of a plant hormone can depend on the tissue. C) Some responses of plants require no hormones at all. D) Light is required for the gravitropic response. E) Cytokinin can only function in the presence of auxin.
The MOST stable atoms and thus those that are typically nonreactive are the atoms that have _______.
A) full inner shells B) equal numbers of electrons an neutrons C) all covalent bonds D) full outer shells E) equal numbers of electrons and protons
Which of the following drugs specifically targets cell walls that contain mycolic acid?
A) vancomycin B) penicillin C) methicillin D) isoniazid E) bacitracin
A ______ contains hydrolytic enzymes to digest foreign bacteria.
A. complement factor B. phagosome C. ribosome D. lysosome