Probably occurred with the presence of a catalyst (enzyme)
Answer:
Unlike inbreeding, hybridization is more likely to cause genetic abnormalities.
The scheme of modern taxonomy goes:
Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species
So, a PHYLUM is made of several classes.
Answer:
Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.
Explanation: