<span>Embryonic stem cells
Tissue-specific stem cells
Mesenchymal stem cells
<span>Induced pluripotent stem cells
</span></span>
I am very sorry, but all I can provide is that Dawn must have used the balance incorrectly or her other classmates didn't account for certain factors that Dawn did. I would really love to help, but I would need more information.
Answer:
Ways in which people positively affect ecosystems around the world include: Recycling. Establishing wildlife preserves and parks. Creating green, open space laws.
Explanation:
:D
I think it is d because the other places are of course wet lands.