The vascular bundles of eudicots separate the
ground tissue into two zones. Which of the
following correctly describes the arrangement
of these zones?
a. outermost xylem >>> phloem >>> pith >>>
cortex
b. outermost phloem >>> xylem >>> pith >>>
cortex
c. outermost cortex >>> phloem >>> xylem
>>> pith
d. outermost pith >>> phloem >>> xylem >>>
cortex
e. outermost cortex >>> xylem >>> phloem
>>> pith
C
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An infection of the pharynx that is normally called sore throat, whose presentation includes erythematous and swollen tissue and which is characterized by inflammatory exudates, vesicles, and mucosal ulceration or by nasopharyngeal lymphoid hyperplasia, is:
a. laryngitis. b. epiglottitis. c. pharyngitis. d. Vincent angina.
In a particular plant, two genes control leaf shape and color. Round leaves (R) are dominant to jagged leaves (r). Yellow fruits (Y) are dominant to white fruits (y). A true-breeding roundleaved, yellow-fruited plant is mated with a jagged-leaved, white-fruited plant. What are the genotypes of the plants involved in this cross?
A) RRYY ´ RRYY B) RRYY ´ rryy C) RrYy ´ RrYy D) cannot determine from the information given
Divergence may lead to
a. genetic drift. b. speciation. c. balanced polymorphism. d. gene flow. e. genetic equilibrium
The major driving force for glomerular filtration is ____
a. blood pressure b. partial pressure c. osmosis d. diffusion e. active transport