Question 1

Which of the following best explains why seeds provide an evolutionary advantage over spores for terrestrial plants?

Accepted Answer

Seeds are multicellular, contain a food supply, and can remain dormant until conditions are favorable.

Question 2

In seed plants, what is the primary function of the pollen grain?

Accepted Answer

To deliver sperm to the ovule for fertilization.

Question 3

Which of the following statements about gymnosperms is correct?

Accepted Answer

Gymnosperms have needle-like leaves with a thick cuticle to reduce water loss.

Question 4

Which structure in angiosperms is specialized for attracting pollinators?

Accepted Answer

Petal

Question 5

What is the main difference between monocots and eudicots?

Accepted Answer

Monocots have parallel leaf venation, while eudicots have netlike venation.

Question 6

Which of the following best describes double fertilization in angiosperms?

Accepted Answer

One sperm fertilizes the egg, and the other sperm combines with two nuclei to form the endosperm.

Question 7

Which adaptation allows gymnosperms to thrive in dry environments?

Accepted Answer

Needle-shaped leaves with a thick cuticle and sunken stomata.

Question 8

A botanist discovers a plant with the following characteristics: seeds enclosed in fruit, netlike leaf venation, and floral organs in multiples of four or five. To which group does this plant most likely belong?

Accepted Answer

Eudicots

Question 9

Which of the following is a key difference between the life cycles of seedless vascular plants and seed plants?

Accepted Answer

Seed plants retain microscopic gametophytes within the tissues of the parent sporophyte.

Question 10

Which of the following best explains why the loss of tropical forests is a major concern for global biodiversity?

Accepted Answer

Tropical forests support a high diversity of seed plants and the animals that depend on them.

Question 11

Which of the following is NOT a function of fruits in angiosperms?

Accepted Answer

Providing nutrients to the developing embryo.

Question 12

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

Accepted Answer

Soybean

Question 13

A pine tree produces both male and female cones. Which of the following statements is true regarding their function?

Accepted Answer

Male cones produce pollen grains, while female cones contain ovules that develop into seeds.

Question 14

Which of the following equations correctly represents the ploidy of the structures in a gymnosperm seed?

Accepted Answer

$$	ext{Embryo} = 2n,\ 	ext{Food supply} = n,\ 	ext{Seed coat} = 2n$$

Question 15

Which of the following is a real-world example of seed dispersal by wind?

Accepted Answer

A fireweed seed being carried by air currents after a volcanic eruption.

Question 16

Which of the following best describes the relationship between the sporophyte and gametophyte in seed plants?

Accepted Answer

The sporophyte nourishes and protects the microscopic gametophyte.

Question 17

Which of the following is a unique feature of angiosperm reproduction compared to gymnosperms?

Accepted Answer

Double fertilization resulting in a triploid endosperm.

Question 18

Which of the following best explains why the preservation of plant diversity is critical for human welfare?

Accepted Answer

Plants provide food, fuel, wood, medicine, and ecosystem services essential for human survival.

Question 19

Which of the following statements about the alternation of generations in seed plants is correct?

Accepted Answer

The sporophyte is the dominant generation, and the gametophyte is reduced and dependent.

Plant Diversity II: The Evolution of Seed Plants

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