Conducting tubes of phloem consist of stacks of ____
a. dead sieve elements
b. living sieve elements
c. dead vessel elements
d. living vessel elements
e. dead companion cells
ANSWER: b
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The last two remaining females in this population disperse to join a different population that is
50 km away. Breeding with males in this new population would introduce new genes and is an example of __________.
a. alleles b. gene flow c. meiosis d. adaptive radiation
Mammals are thought to be living descendants of which of the following lineages?
a. anapsids b. archosaurs c. lepidosaurs d. synapsids e. diapsids
STDs caused by viruses can be effectively treated with antibiotics.
Answer the following statement true (T) or false (F)
Specialized epidermal outgrowths that remove excess salt accumulated in seashore plants are an example of:
a. plasmodesmata. b. guard cells. c. stomata. d. sclereids. e. trichomes