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21. Members of the Chlorophyta often differ from members of Plantae in that some chlorophytans
a. are heterotrophic
b. are unicellular
c. have chlorophyll A
d. store carbohydrates as starch
e. have cellulose cell walls
23. Ways in which Volvox has become advanced over Chlamydomona include which of the following?
I.
Mature organism.
II.
Movement is coordinated among cells.
III.
Colonial organization borders on multicellularity.
a. I only
b. II only
c. III only
d. II and III
e. I, II and III
27. Many biologists consider the kingdom Protista to be polyphyletic. Which of the statements is
consistent with this conclusion?
a.
b.
c.
d.
e.
Various combinations of prokaryote ancestors gave rise to different lineages of protists.
Animals, plants, and fungi arose from different protistan ancestors.
Multicellularity has evolved independently in different groups of protists.
Chloroplasts in different eukaryotes are similar to different prokaryotes.
Archezoans are intermediate and should not be considered part of the Protista.
29. In what ways are all protists alike?
a. They are all multicellular
b. They are all photosynthetic.
c. They are all marine.
d. They are all nonparasitic
e. They are all eukaryotic.
33. Plant spores give rise directly to
a. saprophytes
b. gametes
c. gametophytes
d. zygotes
e. seeds
34. Which of the following represents the male gametophyte of an angiosperm?
a. ovule
b. microspore mother cell
c. pollen
d. embryo sac
e. fertilized egg
35. A botanist discovers a new species of plant in a tropical rainforest. After observing its anatomy and
life cycle, the following characteristics are noted – flagellated sperm, xylem with tracheids, separate
gametophyte and sporophyte phases, and no seeds. This plant is probably most closely related to
a. mosses
b. conifers
c. ferns
d. liverworts
e. flowering plants
39. All of the following plant structures are adaptations specifically for a terrestrial environment EXCEPT
a. roots
b. xylem
c. cell walls
d. waxy cuticle
e. seeds