Question 1

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

Accepted Answer

Dependence on water for fertilization

Question 2

What is the main evolutionary advantage of seeds over spores?

Accepted Answer

Seeds can remain dormant for years and contain stored food for the embryo

Question 3

Which structure in gymnosperms is functionally analogous to the ovary in angiosperms?

Accepted Answer

Ovulate cone

Question 4

A botanist discovers a plant with large cones, palmlike leaves, and flagellated sperm. To which gymnosperm phylum does it most likely belong?

Accepted Answer

Cycadophyta

Question 5

Which of the following best describes double fertilization in angiosperms?

Accepted Answer

One sperm fertilizes the egg, and another sperm fuses with two nuclei to form the endosperm

Question 6

Which of the following is a key difference between gymnosperms and angiosperms?

Accepted Answer

Angiosperms produce flowers and fruits, while gymnosperms do not

Question 7

Which of the following is true about the life cycle of a pine tree?

Accepted Answer

The sporophyte is dominant and produces both male and female cones

Question 8

Which of the following is an example of a real-world application of seed plant adaptations?

Accepted Answer

Fireweed seeds colonizing the Mount St. Helens blast zone after a volcanic eruption

Question 9

Which of the following statements about fruit is correct?

Accepted Answer

Fruits develop from the ovary wall and aid in seed dispersal

Question 10

A plant produces one type of spore that develops into a bisexual gametophyte. This plant is:

Accepted Answer

Homosporous

Question 11

Which of the following is a correct equation for the process of double fertilization in angiosperms?

Accepted Answer

$$1n + 1n \rightarrow 2n ($$zygote); $$1n + 1n + 1n \rightarrow 3n ($$endosperm)

Question 12

Which of the following is NOT a function of the seed coat?

Accepted Answer

Providing nourishment to the embryo

Question 13

Which gymnosperm phylum contains only one living species, known for its tolerance to air pollution and foul-smelling seeds?

Accepted Answer

Ginkgophyta

Question 14

Which of the following best explains why angiosperms are the most diverse and widespread group of plants today?

Accepted Answer

They produce flowers and fruits, which enhance pollination and seed dispersal

Question 15

Which of the following is a major threat to plant diversity and, consequently, to human welfare?

Accepted Answer

Habitat destruction and deforestation

Question 16

Which of the following is a correct match between a plant group and a key characteristic?

Accepted Answer

Eudicots – netlike leaf venation

Question 17

Which of the following is a real-world example of co-evolution between plants and animals?

Accepted Answer

Insect pollinators and flowering plants adapting to each other

Question 18

Which of the following statements about the economic importance of seed plants is FALSE?

Accepted Answer

All seed plants are used exclusively for food

Question 19

Which of the following is a correct sequence of events in the life cycle of a seed plant?

Accepted Answer

Pollination → Fertilization → Seed formation → Germination

Question 20

Which of the following best describes the role of the endosperm in angiosperm seeds?

Accepted Answer

It provides nourishment to the developing embryo

Plant Diversity II: The Evolution of Seed Plants

Study Guide - Practice Questions