The answer is c because it make the most since if you put in the word in the definition
The Nucleus is sort of like the "brain" of a cell.
Bedrock striations. Striations are marks or lines in the bedrock caused through glacial movement
Ecosystems experience change through human activity and natural events. This is because human activity can impact changes in nature, like climate for example. As a result, ecosystems change in response to the change in nature or natural events, which was caused by human activities. They are interrelated so to speak.
