<span>The difference is the source of the material. Spoils come from overburden and is discarded as waste. Tailings come from left over dredging of stream beds that are discarded as as waste as well.</span>
Mutations can be man made but natural selection is a species changing due to the environment
I believe that this would be Incomplete Dominance.
Answer: on number 4 ints fact
Explanation:
There are several ways you can categorize things. This is an example of how I would put animals in order
1. Porifera (sponges)...they consist of a simple cell arrangement
2. Coelenterata (e.g Jellyfish) have an actual tissue
3. Platyhelminthes they are more complex and have muscles
4. Insects. They have several organs that and a simple brain
