Plants Test: Question Preview (ID: 24209)

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How has the evolution of vascular systems in plants helped increase the number of woody plants?
a) Vascular systems release minerals into the cells through osmosis. b) Vascular systems remove water from the cells through diffusion. c) Vascular systems allow the roots and leaves to be farther apart. d) Vascular systems increase the rate of photosynthesis in chloroplasts.
Which of the following plants is a pteridophyte?
a) fern b) moss c) pine tree d) rose bush
Due to natural selection, which type of seed is MOST adapted to hot regions with low precipitation?
a) seeds that are nondormant b) seeds that germinate quickly c) seeds that are not dispersed d) seeds that sprout seasonally
Some plants produce fruit. What is the primary function of the fruit?
a) It provides nutrients to the flower. b) It ensures the dispersal of the seeds. c) It retains water during times of drought. d) It strengthens the fibers of the branches.
What will happen if the vascular tissue of a plant does not form?
a) The roots of the plant will be responsible for photosynthesis. b) The plant will keep its photosynthetic location close to its roots. c) The plant will continue germinating and blossoming throughout the year. d) The xylem of the plant will be responsible for transporting water and glucose.
Which statement explains the alternation of generations in plants?
a) Flowers bloom every other season in order to increase the rate of reproduction. b) Embryos alternate in number in order to allow dormant seeds to survive poor conditions. c) Meiosis and fertilization cause a plant's chromosome numbers to alternate from diploid to haploid. d) Changing levels of precipitation cause the frequency at which plants germinate to alternate from year to year.
Why is phototropism an adaptation that is necessary for plant survival?
a) Phototropism decreases the amount of water that is lost through transpiration. b) Phototropism decreases the amount of carbon that is lost through respiration. c) Phototropism increases the ability of plants to take in nutrients. d) Phototropism increases the ability of plants to produce sugars.
Why is gravitropism a crucial plant adaptation?
a) It protects the plant from germinating in the wrong season. b) It provides the plant with the necessary amount of sunlight. c) It keeps the plant at a constant temperature. d) It allows the plant to establish itself in the soil.
Evolution has diversified certain plants, enabling them to survive in particular biomes. Which plants are MOST LIKELY to survive in the tundra biome?
a) plants that have large leaves b) plants that have shallow roots c) plants that contain long vascular tissues d) plants that bloom more than once a year
Which type of leaf is BEST adapted for survival in high altitudes and cold regions?
a) Very small and narrow leaves b) Very large and wide leaves c) Very small and wide leaves d) Very large and wide leaves
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