Answer:
should be c
Explanation:
moss breaks down the rocks into nutrients and soil that other organisms can feed on, leading to more biodiversity
Answer: Depends on what are you trying to do , a project ?
Explanation:
I would say, C. Because an controlled variable is an experimental element which is constant and unchanged throughout the course of the investigation.
Answer:
Xylem and phloem are the example of vascular tissue. Plant cell function together to form tissue.
