Question 1

Which adaptation allowed early land plants to exchange gases with the environment while minimizing water loss?

Accepted Answer

Stomata and waxy cuticle

Question 2

Refer to the first image. The structures emerging from the green plant body are characteristic of which plant group, and what is their function?

Accepted Answer

Mosses; they are sporophytes producing spores

Question 3

Which of the following best explains why bryophytes are generally small and restricted to moist environments?

Accepted Answer

They lack vascular tissue for efficient water transport

Question 4

Which of the following is a defining feature of the life cycle of all land plants?

Accepted Answer

Alternation of generations between multicellular haploid and diploid stages

Question 5

Which structure is responsible for water and mineral transport in vascular plants, and what is the main strengthening compound in its cell walls?

Accepted Answer

Xylem; lignin

Question 6

The second image shows a plant with a thallus body form. Which group does this plant belong to, and what is a key feature of this group?

Accepted Answer

Liverworts; lack of true stomata

Question 7

Which of the following statements about the evolution of leaves in vascular plants is correct?

Accepted Answer

Microphylls are small leaves with a single unbranched vein, found in lycophytes

Question 8

Which of the following best describes the dominant generation in seedless vascular plants such as ferns?

Accepted Answer

Sporophyte (2n) is dominant and independent

Question 9

Refer to the third image. The upright, horn-like structures are characteristic of which group, and what is their biological role?

Accepted Answer

Hornworts; they are sporophytes that produce spores

Question 10

Which of the following is true regarding the formation of coal deposits during the Carboniferous period?

Accepted Answer

Coal formed primarily from the remains of ancient seedless vascular plants

Question 11

Which of the following best describes the process of heterospory in certain seedless vascular plants?

Accepted Answer

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

Question 12

Which of the following is NOT a shared derived trait (synapomorphy) of all land plants?

Accepted Answer

Presence of true roots and leaves

Question 13

Which of the following is a correct sequence of events in the alternation of generations in land plants?

Accepted Answer

$$	ext{Fertilization} ightarrow 	ext{Zygote} ightarrow 	ext{Embryo} ightarrow 	ext{Sporophyte} ightarrow 	ext{Meiosis} ightarrow 	ext{Spores}$$

Question 14

Which of the following is a function of rhizoids in bryophytes?

Accepted Answer

Anchoring the plant to the substrate

Question 15

Which of the following best explains why seedless vascular plants were able to grow taller than bryophytes?

Accepted Answer

Presence of lignified vascular tissue for support and transport

Question 16

Which of the following is true about the gametophyte and sporophyte generations in mosses?

Accepted Answer

The gametophyte is dominant and photosynthetic, while the sporophyte is dependent on the gametophyte

Question 17

Which of the following is a correct match between plant group and a unique feature?

Accepted Answer

Lycophytes; microphyll leaves

Question 18

Which of the following is a key difference between xylem and phloem in vascular plants?

Accepted Answer

Xylem transports water and minerals; phloem transports sugars and organic molecules

Question 19

Which of the following is a correct statement about the evolutionary relationship among red algae, green algae, and land plants?

Accepted Answer

They are all classified as archaeplastids and share a common ancestor

bio 2 ch 26 pt 2

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