Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 29, Problem 3TY
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Which of these statements are false for lichens? Please select all correct answers.
a.) Fungal species are obligate symbionts
b.) A lichen is two species engaged in commensalism
c.) Algal species are facultative symbionts
d.) Lichen fungi gain sugars from algae
e.) The relationship is beneficial for both fungi and algae
Which statement/s about fungi is/are true? *
I. Fungi can live in marine environments.
II. Saprophytic fungi are organisms that lives on dead or decaying organic matter.
III. The active growth of fungi depends on a relatively high percentage of moisture in the environment.
IV. Lichens are complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga.
Which of the following is NOT an example of a fungal spore?
A. Zoospores
B. Condia
C. Endospore
D. Basidiospores
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- What term describes the close association of a fungus with the root of a tree? a. arhizoid b. a lichen c. a mycorrhiza d. anendophytearrow_forwardThe main growth form of fungi is made up of Select one: O a. hyphae O b. gametangia O c. fruiting bodies O d. sporangia O e. moldsarrow_forwardYou are given a fungus to identify. It has a fruiting body that contains many structures with eight haploid spores lined up in a row. What kind of fungus is this? A. zygomycete B. chytrid C. deutromycete D. ascomycete E. glomeromycete It is not Darrow_forward
- Use the Internet to find examples of chytrids, zygomycetes,ascomycetes, and basidiomycetes that cause diseases in plants oranimals. How does each fungus infect a host and spread to new hosts?What can humans do to fight each disease? What are the costs andbenefits of doing so?arrow_forwardHow can ascomycetes be distinguished from basidiomycetes?a. Ascomycete hyphae have simple pores in their septa and lack clampconnections, whereas basidiomycete hyphae display complex septalpores and clamp connections.b. Ascomycetes produce sexual spores in sacs, whereasbasidiomycetes produce sexual spores on the surfaces of clubshaped structures.c. Ascomycetes are commonly found in lichens, whereasbasidiomycetes are less commonly partners in lichen associations.d. Ascomycetes are not commonly mycorrhizal partners, butbasidiomycetes are commonly present in mycorrhizal associations.e. All of the above are correct.arrow_forwardWhich of the following statements about fungi is false?a. Most fungi are multicellular.b. Fungal cell walls are composed of cellulose.c. Most fungi are nonmotile.d. Fungi digest their food before ingesting it.arrow_forward
- 1) Lichens are often early colonizers, growing on bare rock and in areas where there are no plants yet. How can lichens survive in such habitats, where there is seemingly no nutrients and harsh physical conditions? 2) Distinguish between a hypha (hyphae) and a mycelium. Give an example of a species you observed each in today.arrow_forwardWhich of the following is a characteristic of fungi?a. autotrophicb. cellulose cell wallsc. external digestiond. sexual reproduction common in most speciesarrow_forward. Which phylum of fungi is not known to have a sexual stage in its lifecycle?a. Chytridiomycetes c. Basidiomycetesb. Glomeromycetes d. Zygomycetesarrow_forward
- In a culture of hyphae of unknown origin, you notice that the hyphae lack septa and that the fungi reproduce asexually by using clumps of erect stalks. However, at times sexual reproduction can be observed. To what group of fungi would you assign it?a. Chytridiomycotab. Basidiomycotac. Ascomycotad. Zygomycotaarrow_forwardWhile working in a plant disease diagnostic lab, you receive a sample of a very dead tomato plant. The plant has rotted roots and the symptoms match known fungal and oomycete diseases of tomatoes. Explain one difference between true fungi and oomycetes that you could observe to determine what type of organism is killing the tomatoes?arrow_forwardFungi are not classified as Plants primarily because they: a. are prokaryotes b. need high moisture c. are chemoheterotrophic d. reproduce sexuallyarrow_forward
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