The first plants were organisms we now refer to as a. cycads. |
c |
Which feature(s) were critical for the evolution of land plants? a. Cuticles |
e |
Gametophytes come from a. sporangia. |
e |
Which features of nonvascular plants make them most vulnerable to drying out, thus requiring the presence of water in their terrestrial habitats? a. Swimming sperm and dependent sporophytes |
b |
Which type of tissue conducts water and minerals in vascular plants? a. Cuticle |
c |
Which group might contain lignin? a. Liverworts |
c |
What kind of specialized features do the lycophytes have for capturing light? a. Megaphylls |
c |
What groups of vascular plants are in the Monilophyta? a. Cycads and ferns |
d |
An archegonium will eventually contain a(n) a. egg. |
a |
Where does meiosis take place in the moss life cycle? a. In the antheridia and archegonia of the gametophyte generation |
d |
Where does fertilization take place in the moss life cycle? a. In the antheridium of the gametophyte generation |
b |
Which set of terms represents a haploid/diploid pair? a. Sporophyte/gametophyte |
d |
In conifers, male gametophytes are called _______ and are formed by the division of microspores. a. megasporangia |
c |
Which statement describes events leading to the formation of offspring in the conifer life cycle? a. A haploid pollen grain produced by the male sporophyte enters the female sporophyte and fuses with a haploid megasporangium. |
d |
How do the sporophyte and gametophyte generations compare in a conifer? a. The sporophyte generation is much larger than the gametophyte generation and the two generations grow as independent structures. |
c |
Double fertilization, which is a hallmark of angiosperm sexual reproduction, results in a a. diploid zygote and a diploid endosperm. |
b |
Which statement correctly describes the general pattern of the alternation of generations in angiosperms? a. The sporophyte generation (2n) produces spores (n) that produce gametophytes (n) that produce gametes (n) that fuse to produce a new sporophyte (2n). |
a |
Which structure is not a part of the sporophyte generation? a. Flower |
c |
A biologist discovers a seed-bearing plant that has never been classified. Which feature will help him determine whether the plant is a gymnosperm or an angiosperm? a. The presence of heterospory |
c |
Which of the following clades does not include algae? a. Embryophytes |
a |
Which of the following is a non-seed vascular plant? a. Hornwort |
e |
Which of the following characteristics is shared by all land plants? a. Stomata |
c |
The sporophyte generation a. is dependent on the gametophyte generation in vascular plants. |
d |
Which feature for obtaining water and minerals comes after the nonvascular plants in a phylogeny of the land plants? a. Leaflike structures |
c |
The dominant stage of the life cycle of a moss is the a. diploid sporophyte. |
d |
Which statement regarding vascular plants is true? a. There is an incomplete fossil record for vascular plants. |
c |
Both club mosses and horsetails a. have a smaller sporophyte than gametophyte. |
b |
Which of the following statements regarding the two leaf types (microphylls and megaphylls) is true? a. Microphylls arose from small, sterile sporangia. |
a |
What might be the advantage of seeds with a dormant but viable state? a. Insuring the continuity of the species through time |
a |
All seed plants a. flower. |
d |
Seed plants a. produce one kind of spore. |
e |
A female conifer cone is made up of modified _______ and a male cone is made up of _______ along a central axis. The megastrobilus cone contains the _______ gametophytes and the microstrobilus, the _______ gametophytes. a. leaves; modified branches; female; male |
e |
Coniferous gymnosperms, such as pines, depend primarily on _______ for pollination, thus the plants produce large quantities of pollen that disperse over large areas during the spring. a. insects |
d |
How do angiosperms differ from gymnosperms? a. Angiosperms flower; gymnosperms do not. |
a |
You examine two flowers of the same species but from two separate plants. One flower has only stamens, while the other flower has only a pistil. You would conclude that the species is _______, and the flowers are _______. a. perfect; imperfect |
b |
To determine how a flowering plant is pollinated, which structure or feature would be most important to examine? a. Number of cotyledons in the embryo |
d |
Which of the following correctly pairs a fruit and with a fruit type? a. Blackberry – simple |
e |
Which of the following statements about seeds is true? a. All seeds develop from an ovary. |
a |
How do monocots and eudicots differ? a. Eudicots flower; monocots do not. |
b |
BCOR 012 Chapter 21
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