In angiosperms, the mature female gametophyte is the embryo sac
____________________ Indicate whether the statement is true or false.
True
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The cells that function in phloem are:
a. vessels b. sieve elements c. adjunct cells d. sclereids e. periderm
An expanded definition of intelligence that goes beyond IQ is called ____________________ and includes verbal and
spatial abilities, memory, speed of perception, and reasoning.Fill in the blank(s) with the appropriate word(s).
Ecologist James H. Brown of the University of New Mexico has addressed species composition and
richness in experiments conducted since 1977 in the Chihuahuan desert of southeastern Arizona. In one experiment, the removal of three dominant species, all kangaroo rats, from several plots resulted in an increased diversity of other rodent species. This increase was ascribed both to lowered competition for food and also to an altered habitat, because the abundance of grass species __________ after the removal of the kangaroo rats. a. increased b. decreased c. did not change d. was threatened e. shrunk
If a short sequence of DNA is 5' AATTGCCGT 3', its complement is
A. 5' AAAACGCCA 3'. B. 5' TTAACGGCA 3'. C. 3' TTAAGCCGA 5'. D. 3' TTAACGGCA 5'. E. 3' TTAACGGCT 5'.