Which of the following statements is false?
a. Xylem vessels are similar to drinking
straws.
b. The transport of water in xylem is due to
positive pressure generated by the root.
c. Water evaporates mainly through stomata.
d. Water is drawn up to the top of a tree by the
pull of transpiration.
e. Plants absorb the majority of needed
elements from water and soil
B
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Cladograms include in the phylogenetic tree shared primitive characters and shared derived characters. The derived characters can also be called ______ while the primitive characters can also be called __________.
A. character states; symplesiomorphy B. symplesiomorphy; ingroup C. outgroup; synapomorphy D. synapomorphy; outgroup E. synapomorphy; symplesiomorphy
The pores through which leaves exchange atmospheric gases with leaf cells during photosynthesis are the
A. sieve tube elements. B. guard cells. C. stomata. D. epidermal cells. E. petioles.
Which one of the following enzymes catalyzes the attachment of nucleotides to a growing complementary strand?
A) restriction enzyme B) DNA polymerase C) plasmid D) DNA ligases E) transgenic
Tubular reabsorption occurs when most of the fluid and solutes move back into the ________
Fill in the blank(s) with correct word