General characteristics of Gymnosperms скачать в хорошем качестве

General characteristics of Gymnosperms

General characteristics of Gymnosperms , origin, morphology, anatomy, root, stem leaves Join our Telegram group 👉 https://t.me/BiologyByImtiyaz for PDF notes and information on accessing my eBooks and complete PDF notes through the link below! मेरे टेलीग्राम से जुड़ें और PDF नोट्स प्राप्त करें, साथ ही मेरी ई-बुक्स और पूर्ण PDF नोट्स तक पहुंच की जानकारी पाएं! #bscbotany #gymnosperms #botany #neet #11biology #1stsemesterexam #reproduction #anatomy #anatomydrawing #pinus #cycas Gymnosperms (gymnos = naked, sperma = seed) are the most ancient seed producing plants (spermatophyte) that bears naked seeds on the surface of megasporophyll.  Hence, unlike angiosperms, seeds of gymnosperms are not enclosed in ovary and are also known as phanerogams without ovary. Origin  This group of seed plants originated during the Palaeozoic era.  They were well flourished over the earth’s surface during the Jurassic and Cretaceous periods of Mesozoic era.