Question 1

Which of the following is a key adaptation that enabled plants to colonize land and is found in both charophytes and land plants?

Accepted Answer

Production of sporopollenin to protect reproductive cells

Question 2

Which of the following statements best describes the alternation of generations in land plants?

Accepted Answer

The sporophyte (2n) produces spores by meiosis, and the gametophyte (n) produces gametes by mitosis.

Question 3

Which of the following is NOT a derived trait of land plants?

Accepted Answer

Flagellated sperm with a single flagellum

Question 4

A botanist discovers a plant with the following characteristics: dominant gametophyte generation, no vascular tissue, and spores produced in sporangia. To which group does this plant most likely belong?

Accepted Answer

Bryophytes

Question 5

Which of the following best explains why vascular tissue was a significant evolutionary innovation for plants?

Accepted Answer

It enabled efficient transport of water, minerals, and sugars, supporting greater height and size.

Question 6

Which of the following correctly matches the plant group with its dominant life cycle stage?

Accepted Answer

Seed plants – sporophyte dominant

Question 7

Which of the following statements about the ecological importance of mosses is correct?

Accepted Answer

Peat moss (Sphagnum) forms peatlands that store a significant portion of Earth's soil carbon.

Question 8

Which of the following best describes the function of xylem in vascular plants?

Accepted Answer

Transports water and minerals and provides structural support

Question 9

A plant produces two types of spores: microspores and megaspores. What is this condition called, and why is it evolutionarily significant?

Accepted Answer

Heterospory; it is a key step toward the evolution of seeds

Question 10

Which of the following is a real-world consequence of burning coal formed from ancient seedless vascular plants?

Accepted Answer

It releases ancient carbon as $$\mathrm{CO_2$}$$ into the atmosphere, contributing to climate change.

Question 11

Which of the following best explains why early land plants likely formed mycorrhizal associations with fungi?

Accepted Answer

Fungi helped plants obtain water and mineral nutrients from the soil.

Question 12

Which of the following is a function of the cuticle in land plants?

Accepted Answer

Reduces water loss from the plant surface

Question 13

A student observes a plant with vascular tissue, true roots, and leaves, but no seeds. To which group does this plant most likely belong?

Accepted Answer

Seedless vascular plants

Question 14

Which of the following best describes the evolutionary advantage of leaves in vascular plants?

Accepted Answer

Leaves increase surface area for light capture and photosynthesis.

Question 15

Which of the following statements about the life cycle of a fern is correct?

Accepted Answer

The sporophyte is the dominant, independent stage.

Question 16

Which of the following is a correct sequence of evolutionary innovations in plants, from earliest to most recent?

Accepted Answer

Vascular tissue → Seeds → Flowers

Question 17

Which of the following best explains why bryophytes are generally limited to small size?

Accepted Answer

They lack extensive vascular and support tissues.

Question 18

Which of the following is a real-world example of how plant evolution has impacted Earth's climate?

Accepted Answer

The development of vast Carboniferous forests by seedless vascular plants contributed to global cooling by reducing atmospheric $$\mathrm{CO_2$}.$$

Question 19

Which of the following statements about the relationship between charophytes and land plants is correct?

Accepted Answer

Land plants and charophytes share a common ancestor.

Question 20

Which of the following best describes the role of sporopollenin in plant evolution?

Accepted Answer

It protects spores and reproductive cells from desiccation and harsh conditions.

Plant Diversity I: How Plants Colonized Land

Guida di studio - Domande di pratica

Study guide - Flashcard