Which best describes the wheelbase of a car? length of marks the distance between the center of the front tire and rear tire on the same side
the distance between the centers of front tires or rear tires
radius of the tire tracks
​

idk lol use google m8

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

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.