Recent data indicate what regarding forests in eastern North America?
A) a steady increase in forest since the late 1800s
B) no change over the past 200 years
C) no change in the past 50 years
D) a decline in forested area in the past 50 years
D
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DNA synthesis requires a(n) ____ primer
Fill in the blank(s) with the appropriate word(s).
The complement pathway that is activated by binding of C3b to cell surfaces is the
A. classical pathway. B. alternate pathway. C. C3 pathway. D. mucociliary pathway.
Lignified, tube-like structures that branch throughout the body of some plants, conducting water and
solutes, are called ____.
a. vascular tissues b. apical meristems c. root systems d. rhizomes e. shoot systems
The major constituent of the ECM/basement membrane is _______
a. collagen b. keratin c. Vit B6 d. protein