Question 1

Which of the following is a key evolutionary advantage of seeds over spores in terrestrial environments?

Accepted Answer

Seeds are able to remain dormant until conditions are favorable for germination.

Question 2

In seed plants, what is the function of the pollen tube during fertilization?

Accepted Answer

It delivers sperm directly to the female gametophyte within the ovule.

Question 3

Which of the following best describes heterospory in seed plants?

Accepted Answer

Production of two types of spores: megaspores and microspores, which develop into female and male gametophytes, respectively.

Question 4

Which gymnosperm phylum is represented by a single living species known for its tolerance to air pollution?

Accepted Answer

Phylum Ginkgophyta

Question 5

A botanist discovers a plant with parallel leaf venation, scattered vascular tissue, and floral organs in multiples of three. To which group does this plant most likely belong?

Accepted Answer

Monocots

Question 6

Which structure in angiosperms is specialized for sexual reproduction and often attracts pollinators?

Accepted Answer

Flower

Question 7

In the life cycle of a pine, which process leads to the formation of haploid microspores?

Accepted Answer

Meiosis of microsporocytes

Question 8

Double fertilization in angiosperms results in the formation of which two structures?

Accepted Answer

A diploid embryo and a triploid endosperm

Question 9

Which of the following fruit adaptations is most likely to enhance seed dispersal by animals?

Accepted Answer

Edible fleshy fruits containing seeds

Question 10

A plant species has a taproot system, netlike leaf venation, and pollen grains with three openings. Which group does it most likely belong to?

Accepted Answer

Eudicots

Question 11

Which equation correctly represents the ploidy changes during double fertilization in angiosperms?

Accepted Answer

$$n + n \rightarrow 2n ($$zygote); $$n + n + n \rightarrow 3n ($$endosperm)

Question 12

Which of the following is NOT a characteristic shared by all seed plants?

Accepted Answer

Flagellated sperm

Question 13

Which gymnosperm phylum includes species that are mostly endangered and have large cones with palmlike leaves?

Accepted Answer

Phylum Cycadophyta

Question 14

What is the main function of the integument in a seed plant ovule?

Accepted Answer

To protect the megasporangium and developing embryo

Question 15

Which of the following best explains why flowers with bilateral symmetry may increase speciation rates in angiosperms?

Accepted Answer

They restrict pollinator movement, increasing specificity of pollen transfer and reducing gene flow between populations.

Question 16

Which of the following is a real-world example of a plant-derived medicine and its use?

Accepted Answer

Quinine, used as a malaria preventive

Question 17

Which of the following statements about gymnosperms is correct?

Accepted Answer

Gymnosperms bear 'naked' seeds typically on cones.

Question 18

Which adaptation allows seed plants to colonize dry terrestrial environments more successfully than seedless plants?

Accepted Answer

Development of pollen grains that eliminate the need for water in fertilization

Question 19

Which of the following correctly matches a fruit type with its dispersal mechanism?

Accepted Answer

Hazelnut: dry fruit that remains closed at maturity

Question 20

Which of the following best describes the relationship between animal evolution and flowering plant evolution?

Accepted Answer

Interactions between pollinators and flowering plants select for mutually beneficial adaptations.

Plant Diversity II: The Evolution of Seed Plants

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