2. sodium ion that has lost an electron
Answer:
Answer D
Explanation:
improved water habitats for human recreation
Answer:
C is endoplasum, d is ribosomes , e is mitocondia
Explanation:
Answer: Pigeon and duck.
Explanation:
From that side of the tree, you can see that the pigeon and the duck are closest together in the tree than the other organisms in the other options.