A series of questions and choices that help to identify and place organisms by similarity in structures is called Question 3 options:

a dichotomous key

binomial nomenclature

Linnean system of classification

fossil record

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

Independent variable is something that is changed in a experiment. 

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall