What household object could represent the nucleolus of an animal cell?

Does mitochondria still meet the definition of a eukaryote why or why not?

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.