The New Encyclopaedia Britannica, Volumes 1-10Encyclopaedia Britannica, 1974 - Reference [1] Propaedia: outline of knowledge and guide to the Britannica.--[2]-[11] Micropaedia: ready reference and index.--[12]-[30] Macropaedia: knowledge in depth. |
From inside the book
Results 1-3 of 8
Page 238
... gametophyte N archegonium rhizoids gametophyte sperm MITOSIS zygote root Figure 1 : Fern life cycle . Drawing by M. Pahl HAPLOID GENERATION MEIOSIS antheridium spore prothallus where they occur in fissures and crevices of cliff faces ...
... gametophyte N archegonium rhizoids gametophyte sperm MITOSIS zygote root Figure 1 : Fern life cycle . Drawing by M. Pahl HAPLOID GENERATION MEIOSIS antheridium spore prothallus where they occur in fissures and crevices of cliff faces ...
Page 239
... gametophyte . When the spore wall cracks under appropriate moist conditions , the fern gametophyte is formed . Emerging from the spore at the time of germi- nation are a nongreen rhizoid ( rootlike organ ) , which attaches the plant to ...
... gametophyte . When the spore wall cracks under appropriate moist conditions , the fern gametophyte is formed . Emerging from the spore at the time of germi- nation are a nongreen rhizoid ( rootlike organ ) , which attaches the plant to ...
Page 240
... gametophytes is accomplished by continued growth and fragmentation , but this does not spread the gametophyte very far . Some subfamilies ( Vittarioideae , Grammitidoideae , Hymenophylloideae ) produce specialized filaments , or gemmae ...
... gametophytes is accomplished by continued growth and fragmentation , but this does not spread the gametophyte very far . Some subfamilies ( Vittarioideae , Grammitidoideae , Hymenophylloideae ) produce specialized filaments , or gemmae ...
Other editions - View all
The New Encyclopaedia Britannica, Volumes 1-10 Encyclopaedia Britannica Publishers, Inc. Staff No preview available - 1974 |
Common terms and phrases
acid activity adaptation albite allegory analcime animals atoms biblical bipolar cells bladder blood body called cause cells cellulose centimetres centre century changes chemical colour common cornea cotton countries currency disease effect electrical evidence evolution example excretion Existentialism Fabales fabrics falconiforms farm fascism fatigue Fatimid federal feldspar feldspathoids fencing ferns ferrite festivals fibres field filaments filtrate Finland fire fluid function gametophyte genera glands glomeruli groups important increase jute kidney Lake Eyre layer light magnetic marriage material membrane ment metres millimetres modern molecules movements muscle natural nerve normal occur optic organs percent plants plasma pressure produced properties protein renal result retina rhodopsin social sodium sorus species spinning sporangia spores structure surface temperature textile tion tissue tubule ture types United ureter urethra urine usually vision visual wool yarns