Magnet .................................
Plastics clearly constitute an important component of the range of materials used in modern society. Almost all aspects of daily life involve plastics or rubber in some form or the other. ... Owing to their light weight, plastics reduce transportation costs and, therefore, atmospheric carbon dioxide emissions./Plastic is durable and provides protection from contaminants and the elements.
Answer: B - A battery with wires
Explanation: The mitochondria is the cells source of energy
Under artificial selection.
Natural selection is always stabilising. When there is great selective pressure, it could look as if it is directional, but actually, the environment has changed so much that the entire ecological system is unstable, and evolution compensates and stabilises it. There’s no direction to this compensation, but more like throwing things at the wall and see what sticks.
Only in artificial selection is there a direction.