Thickened stems that grow underground, producing roots and new shoots are
A. tendrils.
B. stolons.
C. rhizoids.
D. tubers.
E. rhizomes.
E. rhizomes.
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The ____ component of the cell membrane functions as a selective barrier, while the ____ component has specific
functions such as transport, recognizing other cells, and binding to other cells.
a. carbohydrate; nucleic acid b. protein; lipid c. lipid; protein d. lipid; carbohydrate e. carbohydrate; protein
Paired, fleshy extensions of the body wall in bristle worms that are used for locomotion and gas exchange are called
____.
a. metanephridia b. parapodia c. septa d. clitella e. setae
This disease most commonly occurs because
an enzyme that crosslinks fibrin strands into a stable mesh is defective. This disease is
a. sickle-cell anemia. b. hemophilia. c. atherosclerosis. d. hypertension. e. emphysema
Which structure is more advanced in this group than
in other reptiles? a. A b. B c. C d. D e. none of these