Chapter 25: Q 21. (page 668)
What seedless plant is a renewable source of energy?
a. club moss
b. horsetail
c. sphagnum moss
d. fern
Short Answer
Option (c). Sphagnum moss is a renewable source of energy.
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Chapter 25: Q 21. (page 668)
What seedless plant is a renewable source of energy?
a. club moss
b. horsetail
c. sphagnum moss
d. fern
Option (c). Sphagnum moss is a renewable source of energy.
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How do mosses contribute to returning nitrogen to the soil?
a. Mosses fix nitrogen from the air.
b. Mosses harbor cyanobacteria that fix nitrogen.
c. Mosses die and return nitrogen to the soil.
d. Mosses decompose rocks and release nitrogen.
Why did land plants lose some of the accessory pigments present in brown and red algae?
Describe two adaptations that are present in mosses, but not hornworts or liverworts, which reflect steps of evolution toward land plants.
Which of the following traits of land plants allows them to grow in height?
a. alternation of generations
b. waxy cuticle
c. tracheid
d. sporopollenin
How does a haplontic plant population maintain genetic diversity?
a. Zygotes are produced by random fusion.
b. Gametes are created through meiosis.
c. Diploid spores undergo independent assortment during mitosis.
d. The zygote undergoes meiosis to generate a haploid sporophyte.
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