Plant Structure
Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?

Both can live and function independently of the cell
Both have their own ribosomes
Both strongly resemble prokaryotes, especially in size
Both have their own DNA

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Plant Structure
Any system that is not at equilibrium

is kinetically unstable, although it may be thermodynamically stable
requires an enzyme to reach equilibrium
is thermodynamically unstable, although it may be kinetically stable
is rushing toward equilibrium at a very rapid rate

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