Question 1

Which of the following is NOT an adaptation that enabled seed plants to dominate terrestrial ecosystems?

Accepted Answer

Dependence on water for sperm transfer during fertilization

Question 2

What is the main evolutionary advantage of seeds over spores?

Accepted Answer

Seeds contain a multicellular embryo and stored food, allowing for dormancy and nourishment

Question 3

In gymnosperms, where do male gametophytes develop?

Accepted Answer

Within microsporangia on pollen cones

Question 4

Which of the following best describes heterospory in seed plants?

Accepted Answer

Production of two types of spores: megaspores (female) and microspores (male)

Question 5

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

Accepted Answer

Flower

Question 6

What is the function of the endosperm in angiosperm seeds?

Accepted Answer

To nourish the developing embryo with starch and nutrients

Question 7

Which of the following statements about gymnosperms is TRUE?

Accepted Answer

They have naked seeds, usually exposed on cones

Question 8

A botanist discovers a plant with one cotyledon, parallel leaf veins, and scattered vascular bundles. To which group does this plant most likely belong?

Accepted Answer

Monocots

Question 9

Which process in angiosperms involves one sperm fertilizing the egg and another sperm fusing with two nuclei to form a triploid cell?

Accepted Answer

Double fertilization

Question 10

Why are cycads considered endangered, despite their success during the Mesozoic era?

Accepted Answer

They have large cones and palm-like leaves but are threatened by habitat loss and over-collection

Question 11

Which of the following is a real-world example of artificial selection in seed plants?

Accepted Answer

The increase in seed size and number in domesticated crops compared to their wild relatives

Question 12

A flower with bilateral symmetry is most likely to:

Accepted Answer

Force pollinators into a specific position, increasing pollination efficiency

Question 13

Which phylum includes only one living species, is tolerant of air pollution, and produces seeds with a rancid odor?

Accepted Answer

Ginkgophyta

Question 14

Which of the following best explains why seed plants are critical to human welfare?

Accepted Answer

They provide food, fuel, wood, and medicines essential for human societies

Question 15

Which of the following is a consequence of habitat destruction in tropical forests?

Accepted Answer

Loss of plant and animal species, including those with potential medicinal value

Question 16

Which of the following is TRUE about the life cycle of a pine (conifer)?

Accepted Answer

It takes nearly three years from cone formation to mature seed production

Question 17

Which of the following is a function of fruits in angiosperms?

Accepted Answer

To protect seeds and aid in their dispersal

Question 18

Which group of plants is characterized by the presence of both woody and herbaceous species, spirally arranged floral organs, and is more closely related to monocots and eudicots than basal angiosperms?

Accepted Answer

Magnoliids

Question 19

Which of the following crops is NOT one of the six that provide 80% of the calories consumed by humans?

Accepted Answer

Soybean

Question 20

Which phylum includes plants that produce ephedrine, a compound used medicinally as a decongestant?

Accepted Answer

Gnetophyta

Plant Diversity II: The Evolution of Seed Plants

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