When a honey bee scout returns to the hive, it will perform a round dance to indicate that the nectar is close, while the
waggle dance indicates the nectar is distant to the hive. This dance is an example of:
a. sign stimuli linked to social interaction.
b. migratory behavior stimulated by environmental changes.
c. insight learning based on trial and error.
d. a physiologically meaningful stimulus (food) and an irrelevant stimulus (dance).
e. optimal foraging dependent on cooperative social behavior.
a
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Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?
A) as a pentose B) as a hexose C) as a monosaccharide D) as a disaccharide E) as a polysaccharide
A frog loses its ability to undergo buccal pumping. What must happen to compensate for this loss?
A. The pumping of blood from the atria to the ventricle must increase. B. The exchange of gases through the skin must increase. C. The pumping of blood from the ventricle to the body must increase. D. The diffusion of wastes through the kidneys must increase. E. The pumping of blood from the ventricle to the atria must increase.
Eudicot embryos transfer nutrients in endosperm to ________ before germination
a. one cotyledon b. the root apical meristem c. the seed coat d. two cotyledons
Which of the following traits is an X-linked recessive disorder?
A. Marfan syndrome B. cystic fibrosis C. sickle-cell disease D. color blindness E. Tay-Sachs