It is b, increased fertility.
The red blood cells bring oxygen to them and the lungs expel the carbon dioxide
Charles Darwin said there where rudimentary parts on the embryos.These included the muscles of the ear<span>, </span>wisdom teeth<span>, the </span>appendix, the tail bone<span>, </span>body hair<span>, and the </span>semilunar<span> fold in the corner of the </span>eye<span>.</span>
False
I hope this helped :)
Confusing but ok
1. Bronchi
2. Trachea
3. Pharynx
4. Alveoli
5. Larynx