Can you tell me what fish this is?

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.