An important example of interaction between fungi and certain other organisms is mycorrhizae, in which the fungal partners _____.
Which structure is not directly involved in the reproduction of at least one major group of fungi?
Which of the following events occurs first in the development of a spore into a mature mushroom?
Fungi of the phylum Ascomycota are recognized on the basis of their production of _____ during sexual reproduction.
Which of the following characteristics is unique to chytrids compared to other groups of fungi?
You are given an organism to identify. It has a fruiting body that contains many structures with eight haploid spores lined up in a row. What kind of a fungus is this?
Arrange the following from largest to smallest:
Among sac fungi, which of these correctly distinguishes ascospores from conidia?
For several decades now, amphibian species worldwide have been in
decline. A significant proportion of the decline seems to be due to
the spread of the chytrid fungus, Batrachochytrium
dendrobatidis (Bd). Chytrid sporangia reside within the epidermal
cells of infected animals, animals that consequently show areas of
sloughed skin. They can also be lethargic, which is expressed through
failure to hide and failure to flee. The infection cycle typically
takes four to five days, at the end of which zoospores are released
from sporangia into the environment. In some amphibian species,
mortality rates approach 100%; other species seem able to survive the infection.
Apart from direct amphibian-to-amphibian contact, what is the most likely means by which the zoospores spread from one free-living amphibian to another?
In both lichens and mycorrhizae, what does the fungal partner provide to its photosynthetic partner?
Which of the following best describes the physical relationship of the partners involved in lichens?
When pathogenic fungi are found growing on the roots of grape vines, grape farmers sometimes respond by covering the ground around their vines with plastic sheeting and pumping a gaseous fungicide into the soil. The most important concern of grape farmers who engage in this practice should be that the
Sexual reproduction has never been observed among the fungi that
produce the blue-green marbling of blue cheeses. What is true of these
fungi and others that do not have a sexual stage?
1) They are currently classified among the ascomycetes.
2) They do not form heterokaryons.
3) Their spores are probably produced by mitosis.
4) They form dikaryotic mycelium.
5) The spores undergo crossing over during meiosis.
A billionaire buys a sterile volcanic island that recently emerged from the sea. To speed the arrival of conditions necessary for plant growth, the billionaire might be advised to aerially sow what over the island?
Which of the following cells or structures are associated with asexual reproduction in fungi?
The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to
The body of most fungi consists of threadlike _____, which form a network called a _____.
Some fungal species can kill herbivores while feeding off of sugars from its plant host. What type of relationship does this fungus have with its host?
At which stage of a basidiomycete's life cycle would reproduction be halted if an enzyme that prevented the fusion of hyphae was introduced?
Which feature seen in chytrids supports the hypothesis that they diverged earliest in fungal evolution?