The answer is Cutaneous Respiration. It is respiration through the surface of the skin. Cutaneous Respiration is used to supplement respiration alongside the use of their lungs. Cutaneous respiration<span> occurs primarily as a means of carbon dioxide exchange, with the majority of oxygen exchange occurring in the </span>lungs<span>. Frogs </span><span>take up most of their oxygen through </span>cutaneous respiration<span>, even if they possess </span>lungs<span>.</span>
•apoptosis-the death of cells which occurs as a normal and controlled part of an organism's growth or DEVELOPMENT.
ANSWER: d. Development
Crystal habit may be described using words such as "bladed," "fibrous," "platy," or "dendritic".