It's the definition of a SPECIES.
Those animals are from the same species.
Rr × rr
(pink) (white)
| \ |
R r r
Therefore, Rr = pink and rr = white
Hope this helps!
I believe you mean legs. If you do, the answer you are looking for is: All spiders have eight legs. They also have two small appendages at the front that are modified legs; these are called pedipalps.
Answer carbon dioxide
Hope this helps