2091. One of the significant events in the history of land plants was the development of :

A. Leaves
B. Cirinate vernation
C. Pollen tube
D. Seed habit *

2092. The development of seed habit took place during :

A. Jurrasic
B. Permian
C. Early devonian
D. Late devonian *

2093. An integumented indehiscent megasporangium is termed :

A. Carpe
B. Ovary
C. Ovule *
D. Seed

2094. In term of spore production selaginella is characterize by :

A. Homosporous
B. Hetrosporous *
C. Both depending upon the conditions
D. None of these

2095. Which of the following racheophytes are also called arthrophytes ?

A. Psilopsida
B. Lycopsida
C. Sphenopsids *
D. Prteropsida

2096. Equistm is an example of :

A. Psilopsida
B. Lycopsida
C. Sphenopsida *
D. Prteropsida

2097. Megaphylls are characteristic for :

A. Ferns
B. Seed plants
C. Both of these *
D. None of these

2098. A sheet of occupied the space in between the dichotomous branches that had been elevated:

A. Sclerenchyma
B. Chlorenchyma *
C. Parenchyma
D. Collenchyma

2099. Production of two types of spores is known as :

A. Heterospory *
B. Homospory
C. Parenchyma
D. Collenchyma

2100. Ground pries are also known as :

A. Lycopods
B. Spike mosses
C. Both of these *
D. None of these