If you see a yellow flower with "nectar guide" stripes best seen in ultraviolet light and with a strong,
sweet odor, it is likely pollinated by ____.
a. flies
b. birds
c. bats or moths
d. butterflies
e. bees
E
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One of the most extensive animal radiations is that of terrestrial arthropods (includes insects). They excrete uric acid as their form of nitrogenous waste
Why does this allow them to conserve more water than a mammal with extensive kidney tubules for water reabsorption? A. The high solubility of uric acid allows the excretory system to reabsorb water. B. Uric acid levels stay high in the blood maintaining a strong osmotic gradient, which allows water to be reabsorbed. C. After precipitation, uric acid no longer influences osmolarity; water returns to the hypertonic tissues. D. After precipitation, uric acid no longer influences osmolarity; water leaves the hypertonic tissues.
Examine the pedigree in the figure above. Individuals affected by the genetic condition in question are indicated by
filled squares or circles. Which inheritance pattern is most likely correct for this condition in this family?
a. autosomal dominant b. X-linked recessive c. X-linked dominant d. cytoplasmic inheritance e. autosomal recessive
Functional groups are very important in organic chemistry. Why are they considered to play such a critical role?
a. Functional groups make molecules resistant to denaturation. b. Functional groups decrease the molecular mass of the molecule. c. Functional groups confer special chemical properties to molecules. d. Functional groups dissolve molecules in water.
Which body region is composed of cartilage?
a. nose b. outer ear c. windpipe d. embryonic skeleton e. all of these