A closed system is a system that makes no physical or chemical exchanges with its environment. Of these systems provided as choices (tree, human, clock, car), only a clock does not make exchanges with the environment, except for energy.
Therefore, of that list, only a clock would be a closed system.
Hope that helped! =)
One Y and one X chromosome.
increase because of carbon
Excess carbohydrates and fats are stored; excess proteins are not
Answer :
Dark district is the counter codon locale and base sets with the mRNA
green is the T?C circle (ribouridine and pseudouridine)
Yellow is the 3' end which has CAA end which connects with the approaching amino corrosive.
Light blue is the anticodon circle
red is the DHU circle i.e. dihydrouridine circle
orange is the additional arm.
Purple area contains 5' end.
