The light-independent reactions<span> of </span>photosynthesis<span> are </span>chemical reactions <span> collectively called the </span>Calvin cycle <span> occurs only when light is available. Plants do not carry out the </span>Calvin cycle<span> during nighttime. They instead release </span>sucrose<span> into the </span>phloem<span> from their </span>starch<span> reserves.
</span>Carbon fixation<span> or сarbon assimilation </span><span>The most prominent example is photosynthesis, although chemosynthesis is another form of </span>carbon fixation<span> that can take place in the absence of sunlight. </span> Dark reactions<span> make use of these organic energy molecules (ATP and NADPH). This </span>reaction<span> cycle is also called Calvin Benison Cycle, and it occurs in the stroma.
</span> we find that <span>light-independent reactions, carbon dioxide fixation - takes place in sunlight n ofcourse is a long process but not dark reaction. Please ref images</span>
Alright so I'm not sure what the words 'least approperiate' is regarding...
but assuming we are talking biology... Maybe the odd one out here is dark resions becasue those reactions don't need light. The Light dependent reactions and CO2 fixation are both part of photosynthesis.
It is the presence of Protists. "The bacteria
communities seem very stable, but the host and the protozoa gene expression are
changing a lot based on diet, The biology
of termite's with the help from microorganisms called protists, are keys to the
insect's digestion of woody material,
Carbon is so abundant in living things even though oxygen is the most abundant element on Earth because carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures. The correct answer is the first option.