Plant Taxonomy
Plant Taxonomy:
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Plant Life: Systamatics and Taxonomy
F.Y.B.Sc. Sem.-II, Paper-IV Plant Life: Systamatics and Taxonomy
B.Sc. Part-II Semester -III, Examination, November, 2019 Examination date
B.Sc. Part-II Semester-III Examination, November, 2019 Examination
The World's Plants are Going Extinct about 500 Times Faster than they should, Study Finds...
The World's Plants are Going Extinct about 500 Times Faster than they should, Study Finds. Seed plants — including most trees, flowers and fruit-bearing plants — are going extinct about 500 times faster than they should be, a new study shows. If you're the sort of person who just can't keep a plant alive, you're not alone — according to a new study published June 10 in the journal Nature Ecology & Evolution , the entire planet seems to be suffering from a similar affliction. After analyzing the populations of more than 330,000 seed-bearing plants around the world, the study authors found that about three plant species have gone extinct on Earth every year since 1900 — a rate that's roughly 500 times higher than the natural extinction rate for those types of plants, which include most trees, flowers and fruit-bearing plants. Unsurprisingly, human activity plays a key role in this elevated extinction trend. [ Wipe Out: History's Most Mysterious ...
F.Y.B.Sc. Sem-I, Paper No-II (2019-20) Gymnosperm : Gnetum Dr. R.P. Jadhav, GKG College, Kolhapur 1. Distribution of Gnetum: Gnetum, represented by about 40 species is confined to the tropical and humid regions of the world. Nearly all species, except G. microcarpum, occur below an altitude of 1500 metres. Five species (Gnetum contractum, G. gnemon, G. montanum, G. ula and G. latifolium) have been reported from India (Fig. 13.1). Gnetum ula is the most commonly occurring species of India. Gnetum species occur in India in the following regions: Gnetumula: It is a woody climber having branches with swollen nodes. It is found in Western Ghats near Khandala, forests of Kerala, Nilgiris, Godawari district of Andhra Pradesh and Orissa. Gnetum contractum: A scandent shrub growing in Kerala, Nilgiri Hills and Coonoor in Tamil Nadu. Gnetum gnemon: ...
तुमची हिंमत तरी कशी होते? Things to know about teenage climate activist: Greta Thunberg.
तुमची हिंमत तरी कशी होते ? Things to know about teenage climate activist: Greta Thunberg स्वीडनची अवघ्या सोळा वर्षांच्या ग्रेटा थनबर्गनं संपूर्ण जगाचं लक्ष वेधून घेतलंय. पर्यावरणरक्षणासाठी तरुण पिढीचा आवाज बनलेली स्वीडनमधील किशोरवयीन पर्यावरणवादी कार्यकर्ती ग्रेटा थनबर्ग हिला 'पर्यायी नोबेल पुरस्कार' म्हणून ओळखला जाणारा 'राइट लाइव्हलीहूड अॅवॉर्ड' घोषित झाला आहे. तुमची हिंमत तरी कशी होते ? स्वीडनची अवघ्या सोळा वर्षांच्या ग्रेटा थनबर्गनं संपूर्ण जगाचं लक्ष वेधून घेतलंय. या किशोरवयीन पर्यावरण कार्यकर्तीनं गेल्या सोमवारी संयुक्त राष्ट्रांच्या पर्यावरण परिषदेत केलेल्या छोट्याशा भाषणाची सर्वत्र चर्चा होत आहे. वाढत्या ऊर्जावापरामुळं वाढत असलेल्या कार्बन उत्सर्जनामुळे पृथ्वी तापतेय. या जागतिक तापमानवाढीचे दुष्परिणाम हवामान बदलाच्या रूपानं दिसू लागले आहेत. ते रोखण्यासाठी उत्सर्जन कमी करण्याची गरज आहे. मात्र , त्यावर विविध देशांच्या नेत्यांचं एकमत होत नसल्यानं दुष्परिणामांचा धोका वाढला आहे. त्यामुळे अस्वस्थ झालेल्या ग्रेटानं अत्यंत उद्विग्न होऊन , पण...