Which of the Following Is a Primary Difference Between Ectomycorrhizae

question 39

Multiple Choice

Which of the following is a primary difference between ectomycorrhizae and endomycorrhizae?

• A) Endomycorrhizae have thicker, shorter hyphae than ectomycorrhizae.
• B) Endomycorrhizae, but not ectomycorrhizae, form a dense sheath over the surface of the root.
• C) Ectomycorrhizae do not penetrate root cells, whereas endomycorrhizae grow into invaginations of the root cell membranes.
• D) Ectomycorrhizae are found in woody plant species; about 85% of plant families form ectomycorrhizae.
• E) There are no significant differences between ectomycorrhizae and endomycorrhizae.

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