True.
Overlapping food chain is a food web. A food web shows the many different paths plants and animals are connected. eg: A hawk might also eat a mouse, a squirrel, a frog or some other animal.
Answer:
Index Fossils can be used to identify a specific time period.
Explanation:
Answer:
The vascular tissues, they are called the xylem and phloem.
Natural selection? Not sure if this helps but.. " A trait that gives the individual an advantage in survival or reproduction, given under a circumstance" sorry if im wrong ]:
I believe it is called a Frameshift Mutation. Hope this helps :^)
