Question: help please annotate annotate the references provided below by explaining...
Help please annotate?!?
Annotate the references provided below by explaining what the article/ journal is about and how it can be used to write about a Coral Reef Biodiversity research paper (this research paper is based on the importance why it is important to preserve coral reef ecosystem, because these reefs provides us with food/ medical resources and protects us from natural distorters).
Reference 1: https://www.ncbi.nlm.nih.gov/pubmed/30203533
Reference 2: http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000700011
Reference 3: https://cnso.nova.edu/forms/sam_purkis_model_coral_population.pdf