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The iota class is the most recent class of CAs described. It has been discovered in the marine diatom Thalassiosira pseudonana, and is widespread among marine phytoplankton. [30] In diatoms, the ι-CA is essential for the CO 2-concentrating mechanisms and - in contrast to other CA classes - it can use manganese instead of zinc as metal cofactor ...
A critical development in 2011 has been the decision taken in principle to extend the right to education till Class X (age 16) [17] and into the preschool age range. [18] However, the government's more recent policy focus has been on the introduction of a new National Education Policy instead of an extension of the Act.
In thermodynamics, the ebullioscopic constant K b relates molality b to boiling point elevation. [1] It is the ratio of the latter to the former: = i is the van 't Hoff factor, the number of particles the solute splits into or forms when dissolved.
Helen (Ancient Greek: Ἑλένη, romanized: Helénē [b]), also known as Helen of Troy, [2] [3] or Helen of Sparta, [4] and in Latin as Helena, [5] was a figure in Greek mythology said to have been the most beautiful woman in the world.
[51] [52] England does not have its own parliament and English affairs continue to be decided by the Westminster Parliament. In 1998 a set of eight unelected Regional assemblies , or chambers, was created to support the English Regional Development Agencies , but these were abolished between 2008 and 2010.
[7] [8] While the adult males in some members of Podapolipidae have six legs, the adult females have only a single pair. [9] Arachnids are further distinguished from insects by the fact they do not have antennae or wings. Their body is organized into two tagmata, called the prosoma and opisthosoma, also referred to as the cephalothorax and ...
In chemistry, hydronium (hydroxonium in traditional British English) is the cation [H 3 O] +, also written as H 3 O +, the type of oxonium ion produced by protonation of water.It is often viewed as the positive ion present when an Arrhenius acid is dissolved in water, as Arrhenius acid molecules in solution give up a proton (a positive hydrogen ion, H +) to the surrounding water molecules (H 2 O).
This has led to the plant being dubbed a "super-plant", as it can readily colonise areas of freshwater, and grow at great speed - doubling its biomass in as little as 1.9 days. [3] The typical limiting factor on its growth is phosphorus, abundance of which, due to chemical runoff, often leads to Azolla blooms. Unlike other known plants, the ...