Vibrio fischeri are bioluminescent when the population reaches a certain size. This is an example of

quorom sensing

Explanation:

Vibrio fischeri are bioluminescent when the population reaches a certain size. This is an example of quorom sensing.

Quorum sensing is simply defined as ability to be able to detect and also respond to population density of cells as a result of gene regulation. It allows information relating to cell density to be shared by bacteria about and also help in adjustment of gene expression. accordingly.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.