Which of these features is not found in all cells? nucleus dna cell membrane ribosomes

The correct answer will be option-nucleus

Explanation:

The living organisms can be classified as prokaryotes and the eukaryotes. They both can be distinguished on the basis of the presence of cellular organelles.

The nucleus which encloses the genetic material of the organism is present only in the eukaryotic organism and not in the prokaryotes like bacteria.  Also, the nucleus in multicellular organism is not present in the cells which do not require it based on the functions like red blood cells.

Therefore the nucleus is the organelle which is not present in all cells and is the correct answer.

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as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.