Alzheimer’s is a bone disease in which the bones become less dense. Please select the best answer from the choices provided

T

F

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

c is the answer. hope this

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.