All the seed plants are…….
a) heterosporous
b) homosporous
c) monosporous
d) polysporous
Explanation: Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants
Seed plants produce……..types spores.
a) two
b) three
c) four
d) five
Explanation: 1. Microspore & 2. Megaspore
The microspore produced in …….germinate into…….
a) microsporangia – female gametophyte
b) microsporangia – male gametophyte
c) megasporangia – female gametophyte
d) megasporangia – male gametophyte
Explanation: microsporangia also known as pollen sacs
The megaspore produced in …….germinate
into…….
a) microsporangia – female gametophyte
b) microsporangia – male gametophyte
c) megasporangia – female gametophyte
d) megasporangia – male gametophyt
Explanation: megasporangia also known as ovules and female gametophyte known as embryo sac
In seed plants, the megaspores……..
a) shed from sporangium
b) retain inside megasporangium
c) retain inside microsporangium
d) both b and c
Explanation: here the megaspore develops into a small female gametophytes
Seed plants do not depend on water for fertilization because of the evolution of
a) integument
b) pollen tube
c) endospore
d) fruit
Explanation: the pollen tube acts as vehicle for the transport of sperm to the fertilize egg
