A blight has destroyed nearly all the __________ trees in the U.S
a. chestnut
b. oak
c. pine
d. poplar
A
You might also like to view...
A solution of starch at room temperature does not readily decompose to form a solution of simple sugars because _____
A) the starch solution has less free energy than the sugar solution B) the hydrolysis of starch to sugar is endergonic C) the activation energy barrier for this reaction cannot easily be surmounted at room temperature D) starch cannot be hydrolyzed in the presence of so much water E) starch hydrolysis is nonspontaneous
The septum in a fungus is:
A. the seventh cellular division B. the seventh nucleus in a dikaryote cell C. the seventh cell from the tip of the hypha D. the demarcation between the mycelium and the fruiting body E. cross walls separating the hyphae into cells
How are amino acids different from one another?
a. The R-group, or side chain, is different in each amino acid. b. The central backbone of the amino acid molecule is different in each one. c. The amino group is different in each one. d. The carboxyl group is somewhat variable in each one.
Which of the following accurately describes the sequence of tissues from the pith outward to the cork in a woody stem?
a. Secondary xylem, primary xylem, vascular cambium, cortex, primary phloem, secondary phloem, and cork cambium b. Primary xylem, secondary xylem, vascular cambium, secondary phloem, primary phloem, cortex, and cork cambium c. Primary xylem, secondary xylem, secondary phloem, primary phloem, cork cambium, cortex, and vascular cambium d. Primary xylem, secondary xylem, vascular cambium, primary phloem, secondary phloem, cortex, and cork cambium e. Cortex, secondary xylem, primary xylem, vascular cambium, primary phloem, secondary phloem, and cork cambium