The answer to this question would be frequency.
The pitch of a sound makes is directly related to the frequency of the vibration. For every octave, the number of frequency will be increased 2 times. The frequency is influenced by various things. Changing the length of the instrument is the easiest method to change the frequency.
D. Dominant
It is dominant as...
The white coat alleles are recessive, meaning the black coat would most likely be dominant alleles. Assuming the black coated dog had the alleles of BB, and the white coated dog had the alleles ww, there would be a 100% chance that the offspring would have Bw alleles, where the black coat is dominant, "all the offspring were black".
B = Black, W = White
B B
w Bw Bw
w Bw Bw
The diagram above shows that the offspring would be 100% black coated.
Not sure if you wanted an explanation, but I tried.
I believe it’s immune system
During the process of photosynthesis<span>, plants use energy from the Sun to convert carbon dioxide and water into glucose and oxygen. </span>These products<span> are, in turn, used by the plant or animals that eat the plant during cellular respiration to produce ATP. So it would be Carbon dioxide. Hope this helps. :)</span>
The ability to reproduce i think is the answer