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A system carries on more activities than a organ.
polyphasic activities
endo plasmic recticulum
i think it is cell membrane
u tell me
mitochondria
CHROMOSOMES! DNA consisting of nucleotides present in the chromosomes carries coded instructions for the cell's activities.
Protocells. American biochemist Sidney Fox in 1992 showed how the first cells may have occured. Fox produced protocells by heating solutions of amino acids. A protocell is a large, ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division. The first forms of life may have been prokaryotic forms that evolved from a protocell.
No, chromosomes aren't organelles, membrane-bound or otherwise.
A cell carries out usual metabolic activities during the stage known as metaphase. This is one of the initial stages of mitosis.
if a letter carries some cheque or documents enclosed with it. Such a letter is known as transmittal letter
It carries on normal activities during the stage called G1.