Which of the following statements about mycorrhizae is correct?
A. Endomycorrhizal fungi constitute a
monophyletic group.
B. The hyphae of ectomycorrhizal fungi
penetrate plant root cells.
C. Endomycorrhizal fungi provide plant roots
with nutrients, whereas ectomycorrhizal fungi
do not.
D. Endomycorrizal fungi receive
carbohydrates from plants, whereas
ectomycorrhizal fungi do not.
E. Endomycorrhizal fungi branch extensively
in the soil surrounding plant roots, whereas
ectomycorrhizal fungi do not.
A
You might also like to view...
Following their respective breeding seasons, several species of hummingbirds occur at the same locations in North America and several hummingbird flowers bloom simultaneously in these habitats. These flowers seem to have converged to a common morphology and color. Birds have the most visual sensitivity to the color red. Following their breeding season, these species of hummingbirds are
A. allopatric. B. sympatric.
Which one of the following is NOT a component of the translation initiation complex?
A. Small ribosome subunit. B. Large ribosome subunit. C. mRNA. D. tRNA. E. All of these are components of the initiation complex.
Which gene(s) produce proteins that control the cell cycle?
What will be an ideal response?
Which of the following is a function of the myelin sheath?
Increases the rate of conduction of a nerve impulse Moves sodium and potassium ions by active transport Protects the dendrites of motor neurons All of the above