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Describe why the taproot of a eudicot can give them an advantage in environments that are periodically exposed to drought conditions.

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Answers may vary.The taproot of the eudi...

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The first plants to colonize land were the


A) gametophytes.
B) bryophytes.
C) pteridophytes.
D) lycophytes.

E) B) and C)
F) A) and C)

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Which of the following statements about lycophytes is correct?


A) The megaspores will develop into female gametophytes.
B) The microspores will develop into female gametophytes.
C) The megaspores will develop into male gametophytes.
D) Lycophytes were the first land plants to evolve megaphylls.

E) All of the above
F) B) and D)

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Gymnosperms are characterized by producing "naked seeds." Which of the following groups is NOT classified as a gymnosperm?


A) horsetails
B) cycads
C) conifers
D) gnetophytes
E) ginkgoes

F) C) and E)
G) B) and E)

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Which of the following groups of plants contain microphylls?


A) Lycophytes
B) Pteridophytes
C) Bryophytes
D) Gymnosperms
E) Angiosperms

F) B) and C)
G) C) and D)

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All of the following structures are associated with lycophytes EXCEPT


A) archegonia.
B) rhizome.
C) microspores.
D) microphylls.

E) A) and C)
F) B) and C)

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What is the correct sequence of events during the life cycle of a moss? a.Gametes are produced in the archegonia and antheridia. B.Spores are released. C.The zygote develops within the archegonium. D.The mature sporophyte develops from the gametophyte and produces spores. E.Flagellated sperm swim towards the egg for fertilization. F.Spore germinates into the protonema.


A) a - e - c - d - b - f
B) a - e - f - d - b - c
C) a - b - d - c - b - f
D) f - e - b - d - a - c

E) B) and D)
F) B) and C)

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Which of the following features would disqualify a plant from being classified as a bryophyte?


A) nonvascular tissues
B) gametophyte is the dominant stage of the life cycle
C) presence of flagellated sperm
D) ability to reproduce sexually and asexually
E) dispersal of gametes by wind

F) None of the above
G) A) and B)

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Which of the following features would have helped early plant ancestors evolve to a terrestrial existence?


A) a cuticle
B) apical cells
C) plasmodesmata
D) placenta
E) All of these features would have helped.

F) C) and D)
G) A) and D)

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Which of the following descriptions applies to megaphylls?


A) can be found in both the pteridophytes and seed plants
B) are broad leaves with branched veins
C) allowed early plants to photosynthesize more efficiently
D) evolved around 370 MYA
E) All of the answer choices apply to megaphylls.

F) B) and D)
G) C) and D)

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Flagellated sperm and a sporophyte that is dependent on the gametophyte are characteristics of


A) gymnosperm.
B) angiosperm.
C) ferns.
D) moss.
E) lycophytes.

F) B) and C)
G) A) and C)

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What trends occurred in the size of the sporophyte and gametophyte generations as plants became adapted to life on land? How can these trends be explained?

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Answers may vary.As plants adapted to th...

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Why are seed producers the dominant plant today?

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Answers may vary.Land plants are the dom...

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Angiosperms are referred to as ________ when the male and female reproductive parts are on different individuals of the same species.


A) dioecious
B) monoecious
C) tetraploid
D) bryophytes

E) A) and D)
F) A) and C)

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Asexual reproduction in the liverwort Marchantia is by means of


A) the detachment of gemmae.
B) budding of daughter cells.
C) fragmentation of plant tissue.
D) the fusion of antheridial and archegonial products.

E) A) and C)
F) A) and B)

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The gymnosperms produce seeds that are enclosed within a fruit.

A) True
B) False

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The first fossil evidence of vascular tissue is seen in the


A) green algae.
B) tracheophytes.
C) rhyniophytes.
D) bryophytes.
E) tree ferns.

F) C) and D)
G) A) and E)

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Identify the species that is NOT classified as a pteridophyte.


A) Marchantia
B) Equisetum
C) Hart's tongue
D) Psilotum

E) C) and D)
F) B) and C)

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All of the following are milestones in the evolution of plants EXCEPT


A) nourishment of a multicellular embryo within the body of the female plant.
B) the development of vascular tissues to conduct water and solutes throughout the body of the plant.
C) seed production.
D) the switch to chlorophyll as the primary photosynthetic pigment.
E) flower production.

F) A) and E)
G) C) and E)

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Horsetails are generally found in dry,sandy environments.

A) True
B) False

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