One disadvantage of cloning is

allows the continuation of species facing extinction

new organisms are often sickly and do not live long lives

scientists can study why nerve cells don't multiply

scientists can study how organisms grow and reproduce

New organisms are often sickly and do not live long lives

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.