Arthropods has the bilateral symmetry !
so answer is B !
Sound intensity is the intensity/volume of sound. Frequency is how high or low the sound is.
<span> Biological disadvantages; people will be able to rid themselves of diseases or provide themselves with superior genes. </span>
Gregor Mendel, in full Gregor Johann Mendel, original name (until 1843) Johann Mendel, (born July 22, 1822, Heinzendorf, Silesia, Austrian Empire [now Hynčice, Czech Republic]—died January 6, 1884, Brünn, Austria-Hungary [now Brno, Czech Republic]), botanist, teacher, and Augustinian prelate, the first person to lay the mathematical foundation of the science of genetics, in what came to be called Mendelism.
