Why do translocation sometimes reduces the total number of chromosomes

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.

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.