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Why chrysophytes float passively in water currents?

Why chrysophytes float passively in water currents? Reference -Ncert                     -class -11                    - page no -20 It is given in ncert about chrysophytes that they are microscopic and "float passively" in water currents.To know about reason of it first of all we have to know that what is mean to float passively.  Float means they lies on the water surface without sinking. Because they doesn't sink so it means they must have low weight. Their low weight is due to fat content in these organisms. Due to fat they have low weight hence doesn't sink and float on water surface.  Passively in simple words means in control of others they float on surface due to water currents. They will move where water currents take them. It is so because they don't have any locomotive structures hence they can't move on water surface by their own. They just taken b...
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When will the living state goes to equilibrium

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When will the living state goes to equilibrium?  Reference : ncert biology                       Class 11                       Page no -153 A Living state goes to equilibrium at the time of death. Because it is given that a system at equilibrium can not perform work. But our body is continuously doing any kind of work. So an organism when it is in living condition is at non equilibrium state. This non equilibrium state is a steady state. Page no 153 In other simple words we can say that a living state is a system which is at non equilibrium state. It continuously want to achieve equlibrium state but because we continuously perform work by energy input so it is prevented to reach at equlibrium.
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Why scientific names are written in italics?

Why scientific names are written in italics?  Reference -Ncert                    -class -11                    Page no -7 It is written in NCERT that biological names are written in italics. But what is the reason behind it ? Reason is given in the ncert itself in point no. 3 that "both the words................. printed in italics to indicate their Latin origin". So it is clear that biological names are written in italics to show that they are in Latin. Now why to show Latin origin italics is used.  Is Latin written in italics?  Answer is no. It is not due to Latin. It is due English.Because it is rule in English that the words that are borrowed from other languages(English has many words that are borrowed from other languages like German, French, Latin etc) are written in italics to show that they are not the words from English language. 
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