Living members of this group are often the dominant land plants in cool temperate zones, especially in
areas with poor soils. Among other products, they are important sources of lumber, paper pulp, resins,
and turpentine.
a. lycophytes
b. ferns
c. gymnosperms
d. bryophytes
e. angiosperms
C
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The fact that regeneration is a common type of reproduction in invertebrates suggests that
A. fertilization of eggs is not necessary. B. sexual reproduction is too costly. C. mitosis must occur before differentiation can begin. D. all the adult cells of many invertebrates retain the molecular machinery necessary to form a complete animal. E. invertebrates live in highly unstable environments.
Which layer of cells in a root retain the capacity to divide, differentiate, and produce lateral roots?
a. epidermis b. endodermis c. pericycle d. root cortex e. pith
To measure gene flow between populations, one must use genes for which the populations' frequencies
are significantly different. Indicate whether the statement is true or false.
Endocrine communication involves hormones that reach their target cells via the bloodstream, whereas ________ communication involves local hormones that affect nearby cells
Fill in the blank(s) with correct word