What are soil fungi with hyphae that grow into plant roots and branch inside the cell walls of plant root cells?
a. chytrids
b. glomeromycetes
c. zygote fungi
d. sac fungi
e. club fungi
b
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Root formation in stem cuttings can be improved by the application of ____.
A. synthetic auxins B. abscisic acid C. salicylic acid D. ethylene E. gibberellin
Which statement best explains why modern seedless vascular plants are confined largely to wet or humid environments?
a. They require external water for reproduction. b. They do not have true roots. c. They lack stomata. d. They have a dominant sporophyte generation. e. They do not have flowers or fruits.
All EXCEPT which of the following statements
concerning fungal body plans are true? a. A mesh of hyphae is called a mycelium. b. Branching filaments are called hyphae. c. Most fungi are unicellular. d. Cell walls contain chitin. e. Some filaments become modified into reproductive structures.
The direct result of cytoplasmic fusion is the
production of a a. dikaryotic cell. b. zygote. c. gamete. d. spore. e. mushroom.