C, because alleles are alternative forms of a gene that arise from mutation.
Well you do not have a set of choices but here is an example!
Sweating, your body releases water to cool down the skin of your body!
<span>Glycolysis.
Hope this helps (:
-Payshence xoxo</span>
Covalent bonds are formed when two atoms are able to <em>share</em> electrons.
Iroinic bonds are form when two atoms are <em> </em> electrons from each other to complete the bond. This results in a pair of ions.
<u>Covalent bonds:</u>
- Have a definite shape.
- Have a low melting point.
- At room temperature they are in a liquid or gas.
- They occur between two non-metals.
<u>Ionic bonds:</u>
- Have no definite shape.
- Have a high melting point.
- At room temperature they are solid.
- They occur between a metal and a nonmetal.
Producer primary consumer secondary consumer tertiary consumer decomposer
