Tracts of white matter that connect the right and left hemispheres are composed of Select one: a. decussation fibers. b. association fibers. c. commissural fibers. d. projection fibers. e. pyramidal fibers

c. commissural fibers.

Explanation: Commissural fibers connect corresponding regions of the left and right hemispheres of the brain. In connects the right hemisphere and the left hemisphere of the brain.

Contrary to commissural fibers, association fibers links regions within the same hemisphere of the brain, and projection fibers connect each region or hemisphere to other parts of the brain and/or to the spinal cord.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.