Question 1

Which of the following is NOT an adaptation that allowed plants to colonize land?

Accepted Answer

Flagellated sperm that swim to fertilize eggs in water

Question 2

Which plant organ is primarily responsible for absorbing water and mineral nutrients from the soil?

Accepted Answer

Roots

Question 3

In the alternation of generations in plants, what is the main function of the sporophyte (2N) generation?

Accepted Answer

To produce spores by meiosis

Question 4

Which of the following best describes bryophytes?

Accepted Answer

They are nonvascular plants lacking true roots and leaves

Question 5

What is the primary evolutionary advantage of seeds in seed plants?

Accepted Answer

They provide a protective covering and food supply for the embryo

Question 6

Which structure in a flower is responsible for producing pollen?

Accepted Answer

Anther

Question 7

Why are angiosperms considered to have a reproductive advantage over gymnosperms?

Accepted Answer

They produce flowers that attract animal pollinators, increasing pollination efficiency

Question 8

Which of the following is a function of the xylem in vascular plants?

Accepted Answer

Transport of water and minerals from roots to shoots

Question 9

A botanist discovers a plant with the following characteristics: it has true roots, lignified vascular tissue, but does not produce seeds. To which group does this plant most likely belong?

Accepted Answer

Seedless vascular plants

Question 10

Which of the following best explains why fruits are advantageous for angiosperms?

Accepted Answer

They protect seeds and aid in their dispersal by animals or wind

Question 11

Which adaptation is most directly responsible for the ability of gymnosperms to reproduce without water?

Accepted Answer

Development of pollen grains

Question 12

Which of the following is a real-world example of artificial selection in plants that has impacted human agriculture?

Accepted Answer

Domestication of wheat for increased grain yield

Question 13

Which part of the flower matures into a fruit after fertilization?

Accepted Answer

Ovary

Question 14

A plant species is found to have a dominant sporophyte generation and produces seeds within protective chambers. To which group does it belong?

Accepted Answer

Angiosperms

Question 15

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

Accepted Answer

Distributes sugars produced by photosynthesis throughout the plant

Question 16

Which of the following is a key difference between algae and land plants?

Accepted Answer

Land plants have specialized organs for resource acquisition

Question 17

Which of the following is an example of a seedless vascular plant?

Accepted Answer

Fern

Question 18

Which adaptation allows angiosperms to reproduce rapidly in harsh environments such as deserts?

Accepted Answer

Rapid fertilization and seed production after pollination

Question 19

Which of the following best explains the concept of pollinator fidelity and its evolutionary advantage for flowering plants?

Accepted Answer

Pollinators consistently visit the same species, increasing the likelihood of successful pollination

Question 20

Which of the following is a direct consequence of reduced plant diversity in modern agriculture?

Accepted Answer

Greater vulnerability of crops to environmental changes

Diversity of Life : Plants: UNIT 7

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