Metamorphic. I looked up some rocks and I’m including the picture of it and it shows something similar to your picture and it says it’s a metamorphic rock.
Bio-geographic isolation is the separation of part/a whole species due to either biological or geographical reasons.
Biological could be lack of food, or a more preferable source of food somewhere else, etc. Geographical could be rivers, oceans, mountains, etc.
Velocity is how fast the river is moving, the Volume is how much is in the river!
<span>D) plants. hope this helps</span>
