If you examined a cross section of a woody stem under the microscope and located the vascular cambium, the tissues on the inside of the vascular cambium ring (toward the center of the stem) would be
A. phloem (primary and secondary).
B. xylem (primary and secondary).
C. xylem (only primary).
D. phelloderm.
E. phloem (only secondary).
Answer: B
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The production of female gametes begins when a mass of tissue, called the ovule, starts growing on the inner wall of
a(n) __________. Fill in the blank(s) with the appropriate word(s).
Which of the following is not a factor that weakens host defenses against infections?
A. Old age B. Chemotherapy C. Physical and mental stress D. Genetic defects in immunity E. Strong, healthy body
Cells within the morula ____
a. are identical b. are not differentiated c. number over 1000 d. each contain a different portion of the egg’s cytoplasm e. are each the same size of the original egg
In correct order, the three stages of translation are ___________.
A. initiation, replication, and termination B. elongation, peptide bond formation, and codon-anticodon pairing C. initiation, chain elongation, and termination D. termination, initiation, and replication E. initiation, codon-anticodon pairing, and termination