How many estimated genera of spermatophyta (seed plants) are known today?
a) 12500
b) 1200
c) 1300
d) 1400
How many estimated species of spermatophyta (seed plants) are known today?
a) 100,000
b) 200,000
c) 300,000
d) 40,000
Which of the following factor/s responsible for the success of angiosperms?
a) their adaptability to all kinds of environments
b) the production of flowers, fruits and seeds
c) dominant sporophytic generation over gametophytic generation
d) both a and b
Exercise:
In bryophytes, the male reproductive organ is known as………
a) stamen
b) antheridium
c) carpel
d) archegonium
The plants in which the seeds are enclosed in the fruit are………
a) gymnosperms
b) angiosperms
c) bryophytes
d) tracheophytes
