Batrachospermum Occurrence:- (1) Batrachospermum is fresh water alga. (2) It is found in clear, cool, and running streams. (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green. (4) The intensity of light changes the color of pigments. (5) The thallus is attached to the substratum. Vegetative structure (1) The thallus of an adult plant is soft, thick, filamentous. (2) It is freely branched and gelatinous. (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth are developed on this axis. (4) These branches are filamentous and dichotomously arranged. (5) The main axis is corticated. It consists of a row of elongated cylindrical cells. (6) It is differentiated into nodes and internodes. (7) There are two types of branches that arise from the nodes: Branches of limited growth Branches of unlimited growth Batra
Chemistry Nobel prizes(2000-2020) The Nobel prize in Chemistry has been awarded 111 times to 184 Nobel Laureates between 1901 and 2019. Sanger is that the only Nobelist who has been awarded the Nobel prize in Chemistry twice, in 1958 and 1980. this suggests that a complete of 183 individuals have received the Nobel prize in Chemistry. The Nobel prize in Chemistry 2020 The 2020 Nobel prize in Chemistry has not been awarded yet. it'll be announced on Wednesday 7 October, 11:45 CEST at the earliest The Nobel prize in Chemistry 2019 John B. Goodenough, M. Stanley Whittingham and Akira Yoshino “for the event of lithium-ion batteries” The Nobel prize in Chemistry 2018 Frances H. Arnold “for the directed evolution of enzymes”, George P. Smith and Sir Gregory P. Winter “for the phage display of peptides and antibodies” The Nobel prize in Chemistry 2017 Jacques Dubochet, Joachim Frank and Richard Henderson “for developing cryo-electron micros