Biology Unit I Lecture Exam

A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, he notes the following characteristics: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. This plant is probably most closely related to _____.

• mosses

• ferns

• flowering plants

• gymnosperms

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About 450 million years ago, the terrestrial landscape on Earth would have _____.

• been completely bare rock, with little pools that contained bacteria and cyanobacteria

• had non-vascular green plants similar to liverworts forming green mats on rock

• looked very similar to that of today, with flowers, grasses, shrubs, and trees

• been covered with tall forests in swamps that became today's coal

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According to our current knowledge of plant evolution, which group of organisms should feature cell division most similar to that of land plants?

• charophytes

• cyanobacteria

• unicellular green algae

• red algae

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All three domains derived from a __________________ ________________.

• Common cell

• Common ancestor

• Common gene

• Common nucleus

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Archegonia _____.

• may contain sporophyte embryos

• make asexual reproductive structures

• are the sites where male gametes are produced

• have the same function as sporangia

Arrange the following structures from largest to smallest, assuming that they belong to two generations of the same angiosperm.

• 4, 5, 2, 1, 3

• 5, 4, 3, 1, 2

• 5, 1, 4, 2, 3

• 4, 1, 2, 5, 3

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Arrange the following structures, which can be found on male pine trees, from the largest structure to the smallest structure (or from most inclusive to least inclusive).

• 1, 4, 3, 2, 5

• 1, 2, 3, 5, 4

• 4, 1, 2, 3, 5

• 4, 3, 2, 5, 1

Arrange the following terms from most inclusive to least inclusive.

• 1, 4, 2, 5, 3

• 2, 5, 1, 3, 4

• 2, 1, 5, 3, 4

• 1, 2, 5, 3, 4

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NGSS.HS-LS4-1

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At some time during their life cycles, bryophytes make _____.

• microphylls

• true roots

• sporangia

• true leaves

Conifers and pines both have needlelike leaves, with the adaptive advantage of _____.

• increased surface area, increasing photosynthesis

• decreased surface area, reducing water loss

• increased surface area, increasing gas exchange

• decreased surface area, reducing gas exchange

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