Uracil, (it replaces Tymine)
The decrease of biodiversity, messing up the ecosystem in regards to the food web and chain etc.
Answer:
The four threats would be Poaching,Nets, Pollution,Costal development, and or hunting as well.
Explanation:
Sorry If I am Wrong.
In geology, a graded bed is one characterized by a systematic change in grain or clast size from one side of the bed to the other. Most commonly this takes the form of normal grading, with coarser sediments at the base, which grade upward into progressively finer onesI just learned about this in our rocks and minerals unit for science,
