Cracks in rocks or mountians
Answer:
because they were in the deep ocean where theres no plants
Answer:
I believe it may be "B" so hopefully it's right
Answer: the contractile vacuole
Explanation: The contractile vacuole is a star-like structure located toward the cell's posterior. This organelle aids the cell in the removal of excess water. Without it, the euglena would be able to absorb so much water through osmosis that the cell would burst.
Hope that helps
