Cactus spines are modified leaves adapted for dry climates, while the leaves of the Venus fly trap plant are adapted to
capture insects. These structures are therefore ____.
a. analogous
b. homologous
c. recessive
d. homozygous
e. morphogenic
ANSWER: b
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Activity of the two halves of the cerebrum is coordinated by means of the __________ that connects
them. Neural Control 293 Fill in the blank(s) with the appropriate word(s).
If similarities between two structures in different organisms reflect common ancestry, these structures are
A. Vestigial B. Analogous C. Homeotic D. Heterozygous E. Homologous
Which of the following mutagens is most different than the others in terms of its effect on DNA?
A. Planar mutagen that inserts between stacked bases B. Acridine orange C. Base analogue D. Intercalating agent
Land plants most likely evolved from which of the following organisms?
a. brown algae b. red algae c. green algae d. bryophytes e. seedless vascular plants