Chapter 27/28 Test
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Legumes are valuable crops because they…
Improve the nitrogen content of soil.
Grasses contain grains that are called
Cereals
Cultivars are selected by
People
Why are redwoods resistant to fire
Their bark is very thick
The artificial fabric rayon is made from
Processed wood fibers
What is pepper
A spice
Grains can be fermented into alcohol and mixed with gas to create
Gasohol
Growing plants for human use
Agriculture
A crop that would be an example of a tuber
Yam
About half of the world’s species of plants live in
Tropical rain forests
Plants that are harmful when eaten or touched
Poison oak, holly, American mistletoe
Mycorrhizal fungi
Infect plant root without harming the roots
Some bacteria can take what atmospheric gas and convert it into a form plants can use
Nitrogen
Giant ragweed is pollinated by
Wind
One of the inorganic nutrients recycled by plants is
Phosphorus
This plant has become a weed that clogs waterways in SE US
Water hyacinth
What step has been taken to reduce in introduction of plant pests and diseases into the US
Government inspectors screen incoming plant materials
The Latin word for fine flour is
Pollen
What probably doesn’t cause hay fever
Large flowers
Known as flowering plants
Angiosperms
A gametophyte phase of a plant is
Haploid
What helps the seeds of maple trees disperse from the parent plant
Winged fruit
What is one role of stomata on plants
Allow exchange of oxygen and carbon dioxide
There are ___ phyla, or divisions, of kingdom plantae
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