Patent fingerprints are made by a liquid or powder that sticks to the finger and then transfers to a surface, leaving an easily visible fingerprint behind. Substances that can leave patent fingerprints are ink, blood, dirt, flour, grease, etc.
To replace damaged and worn out cells
A coral reef is made of<span> thin layers of calcium carbonate. </span>Coral<span> polyps form a living mat over a calcium carbonate skeleton.</span>
The translocon (commonly known as a translocator or translocation channel) is a complex of proteins associated with the translocation of polypeptides across membranes.[1] In eukaryotes the term translocon most commonly refers to the complex that transports nascent polypeptides with a targeting signal sequence into the interior (cisternal or lumenal) space of the endoplasmic reticulum (ER) from the cytosol. This translocation process requires the protein to cross a hydrophobic lipid bilayer. The same complex is also used to integrate nascent proteins into the membrane itself (membrane proteins). In prokaryotes, a similar protein complex transports polypeptides across the plasma membrane or integrates membrane proteins.[2] Bacterial pathogens can also assemble other translocons in their host membranes, allowing them to export virulence factors into their target cells.[3]
The prokaryotic translocon
"The oxytocin in blood stimulates the pituitary to secrete more oxytocin" is the way among the following choices given in the question that <span>the level of oxytocin is controlled by a positive-feedback mechanism. The correct option among all the options that are given in the question is the second option or option "B".</span>