One major difference between ectomycorrhizae and arbuscular mycorrhizae is
A. ectomycorrhizae are parasitic on plant roots while arbuscular mycorrhizae are not.
B. most ectomycorrhizae are zygomycetes while most endomycorrhizae are basidiomycetes.
C. ectomycorrhizae do not penetrate plant roots; arbuscular mycorrhizae penetrate plant roots.
D. ectomycorrhizae are more common on plant roots than arbuscular mycorrhizae.
E. ectomycorrhizae form mutualisms while arbuscular mycorrhizae are parasitic.
Answer: C
You might also like to view...
If a Wood's lamp examination of skin lesions reveals a golden-yellow fluorescence, then what superficial mycoses are expected?
a. Malassezia furfur b. Trichosporon spp. c. Candida albicans d. Cryptococcus neoformans
Which of the following is (are) an important
influence(s) on the evolution of mammals? a. continental movements b. geographic isolation c. competition between species d. decline of the dinosaurs e. all of these
When genotypes at one locus of a chromosome are independent of genotypes at another locus of the same chromosome, the two loci are ________
A) in linkage equilibrium B) in linkage disequilibrium C) nonrandomly associated D) None of the above.
A new DNA strand elongates only in the to direction because _____
A) DNA polymerase begins adding nucleotides at the end of the template B) the polarity of the DNA molecule prevents addition of nucleotides at the end C) replication must progress toward the replication fork D) DNA polymerase can add nucleotides only to the free end