Under a microscope, a piece of a mushroom would look most like
a. Jelly.
b. A tangle of string.
c. Grains of sugar or salt.
d. Foam.
Taylor, Simon, Dickey, Hogan 10th Edition
Ch. 17 The Evolution of Plant and Fungal Diversity
Problem 11
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Under a microscope, a piece of a mushroom would look most like
a. Jelly.
b. A tangle of string.
c. Grains of sugar or salt.
d. Foam.
Which of the following groups is made up exclusively of fungi that form symbioses with plant roots?
a. Ascomycetes
b. Basidiomycetes
c. Glomeromycetes
d. Zygomycetes
Truffles (the fungi, not the chocolates) are the reproductive bodies of ascomycetes that form mycorrhizae with certain tree species. They are highly prized by gourmets for the delicious scent they add to food. Because truffles grow underground, they are difficult to find—human noses are not sensitive enough to locate them. Many animals, however, are excellent truffle hunters and eagerly consume the fungi. Why would these fungi produce a scent that attracts fungus-eating animals?
In April 1986, an accident at a nuclear power plant in Chernobyl, Ukraine, scattered radioactive fallout for hundreds of miles. In assessing the biological effects of the radiation, researchers found mosses to be especially valuable as organisms for monitoring the damage. Radiation damages organisms by causing mutations. Explain why it is faster to observe the genetic effects of radiation on mosses than on plants from other groups. Imagine that you are conducting tests shortly after a nuclear accident. Using potted moss plants as your experimental organisms, design an experiment to test the hypothesis that the frequency of mutations decreases with the organism's distance from the source of radiation.