In ferns, antheridiogens induce antheridia in _______ gametophytes.
b. larger, less mature
c. smaller, less mature
d. larger, more mature
e. smaller, more mature
14. Reproductive Systems; p. 398; moderate; ans: a
Heterospory differs from homospory in that heterospory involves:
b. larger gametophytes.
c. bisexual gametophytes.
d. spores differentiated on the basis of size not function.
e. different types of spores produced in the same sporangium.
15. Reproductive Systems; p. 398; moderate; ans: d
Which of the following is NOT an evolutionary trend in the vascular plants?
b. Reduction in size of the gametophyte
c. Reduction in complexity of the gametophyte
d. Increased prominence of antheridia and archegonia
e. Decreased reliance on water for transferring sperm to egg