Vascular Plants: Gymnosperms

Quiz 9

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Questions 1 – 13 are charmed from the plan website, Vascular Places: Gymnosperms
Questions 14 – 20 are charmed from Chapter 18 in the textbook.
A B C D
1. The extinct “cycadeoids” vary from the deceased present cycads by having ______________.
A. primitive tissues still no subordinate tissues
B. unisexual pollen and root cones
C. varyent morphology of the escort cells in the epidermis
D. flowers instead of cones

A B C D
2. Cycads are dioecious, aim that ______________.
A. there are no reproductive organizations unreserved
B. the places ooze their leaves each fall
C. they accept manly and femanly cones on the identical place
D. there are contrariant manly and femanly places

A B C D
3. Unaffect the root cseparate of withers, the root cseparate of cycads such as Cycas revoluta is ______________.
A. a artless organization, a limb of mitigated leaves (megasporophylls)
B. a obscure organization, a limb of mitigated limbes (microsporophylls)
C. a obscure organism, a mitigated gametophyte
D. nseparate of the over are correct

A B C D
4. In cycads, as in integral other gymnosperms, a pollen tube is ______________.
A. separate of the most great evolutionary advances in root places
B. closinging, the sperm swim spontaneously to the egg
C. greatly hanker, usually more than 15 cm in length
D. a instrument of transferring the pollen bit to the stigma

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A B C D
5. Cycad fossils are ______________.
A. obscure
B. unreserved from the deceased Permian
C. wide in the Devonian, still unusual in deceasedr Periods
D. never rest with cones or roots

A B C D
6. Root ferns ______________.
A. were the primary collocation of places to accept penny roots
B. eliminated in the Devonian and became extinct by the Cretaceous
C. were polyphyletic, and slight gave agitate to distinct deceased lines of root places
D. integral the over are correct

A B C D
7. The Carboniferous was casually referred to (mistakenly) as the “Age of Ferns” accordingly_________________.
A. fossils of root ferns were repeatedly mischarmed control penny ferns
B. ferns did referable eliminate until the Oligocene
C. Lycophyte fossils were most wide, and accept fern-affect (pinnate) leaves
D. integral of the over are correct

A B C D
8. The present gymnosperm phylum unreserved as the Ginkgophyta is monotypic, aim it has still separate ____________.
A. root
B. sex
C. species
D. fossil

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A B C D
9. Ginkgo biloba is regarded as a “buttress fossil” accordingly it ______________.
A. has microphyllous leaves extraneously any vascular tissue
B. has silicon dioxide (glass) deposits in its leaves, giving the place a rock-affect feel
C. is almost inappreciable from Permian fossil ginkgoes
D. integral of the over are correct

A B C D
10. Separate thrilling and great idiosyncrasy of Ginkgo biloba is that ______________.
A. it has bisexual cones
B. its root flatter yields stillanoic and hexanoic acids, which stink
C. it closings penny leaves
D. it is barren and yields no pollen or roots

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A B C D
11. “Gnetophytes” affect Ephedra ______________.
A. may be the closest buttress kinsfolk of flowering places
B. are ununreserved from the fossil record
C. are the singly root places that closing vascular tissues
D. accept roots with multiple embryos, so that a separate root yields distinct places

A B C D
12. An great idiosyncrasy of the “gnetophyte” Ephedra is ______________.
A. its ovules yield a sugary exudate that rewards insect pollinators
B. it has vessel elements in its xylem
C. it yields a efficacious alkaloid that raises order pressure
D. integral of the over are correct

A B C D
13. Conifers arose in the ______________.
A. Carboniferous from ancestors affect Cordaites
B. Cretaceous from ancestors affect Welwitschia
C. Cambrian from ancestors affect Medullosa
D. nseparate of the over are correct

A B C D
14. A root is defined as a fertilized ovule. An ovule consists of ______________.
A. a megasporocyte and an embryo
B. a megasporophyte with cotyledon(s)
C. a megasporangium enfolded by envelope(s)
D. a megasporangium and a microsporangium

A B C D
15. Morphologically, a fascicle of needles in Pinus is a ______________.
A. spasmodic limb
B. determinate limb
C. reproductive limb
D. extensive mitigated pinnate leaf

A B C D
16. Xerophytic adaptations (adaptations control augmentation where water is unusual) of wither leaves (“needles”) embody ______________.
A. diluted cuticle
B. sunken stomata
C. twain of the over are correct
D. neither of the over are correct

A B C D
17. Inside the immature wither pollen bit are four cells, which illustrate the ______________.
A. microsporocyte
B. microgametophyte
C. microsporophyll
D. microsporophyte

A B C D
18. The ovuliferous scales of withers are ______________.
A. artless spasmodic limbes
B. mitigated leaves
C. lukewarm on femanly trees
D. mitigated determinate limb systems

A B C D
19. The Cycadophyta appeared closely ______________ years since in the ______________.
A. 370 pet . . . Devonian
B. 250 pet . . . Permian
C. 145 pet . . . Cretaceous
D. 20 pet . . . Miocene

A B C D
20. Affect the cycads, Ginkgo bears its ovules and microsporangia ______________.
A. on varyent individuals
B. on the identical individual
C. at varyent seasons
D. in the identical cone

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