If it is an X-Linked trait, the answer would have to be "Sex-Linked". If it is on the X chromosome, it is on a sex chromosome.
It is a wedge as when it cuts it separates the two sides of what ever you are cutting just like a wedge <span />
A. develops through gradual processes over many generations.
Diversity is gained through a difference of alleles and alleles can only be passed on to offspring.
Let's read the chemical equation for cellular respiration. The equation shows that cells use<span> six molecules of </span>oxygen<span> (6O</span>2<span>) to </span>break down<span> one molecule of </span>glucose(C6H12O6<span>). The arrow shows that when the sugar is broken </span>down<span> something else is produced. Energy, water, and carbon dioxide are produced.</span>