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