1)The classification characteristics that define the genus of an animal or a plant are usually more general than those defining
(A) a class
(B) an order
(C) a species
(D) a family
(E) a phylum
2)Which of the following adaptations is more likely to be found in the leaves of desert plants than in those of plants that grow in moist regions?
(A) Stomata mostly on upper leaf surface
(B) A thin, transparent cuticle
(C) A smooth leaf surface free of hairs
(D) A thickened epidermis and cuticle
(E) A loosely packed mesophyll layer
3)If all the xylem from a section of tree trunk could be removed, which of the following would most likely happen first?
(A) Food could not pass from the leaves to the roots.
(B) The roots would be unable to transfer any stored food to the spring buds.
(C) The leaves would be unable to get any carbon dioxide.
(D) The roots would be unable to store food.
(E) The leaves would be unable to get sufficient water.
4)Whereas the ultimate source of energy for most organisms is sunlight, the immediate source is
(A) chemical
(B) electrical
(C) thermal
(D) gravitational
(E) radiant
5)In the name Homo sapiens, the word sapiens refers to the
(A) species
(B) family
(C) class
(D) genus
(E) order
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