Most of our early knowledge about the brain came from: A. naturalistic observation of primates. B. naturalistic observation of children in different cultures. C. case studies of brain damaged individuals. D. case studies of normal individuals.
Coral reef definition: A coral reef is a long narrow mass of coral and other substances, the top of which is... | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog
Coral reefs are formed when one coral stays plotted down in one area. After time, that coral dies, and another attaches to that dead one and lives there. This happens over andâ¦ over to form coral reefs.   Coral reefs are built mainly from corals and sea anemones. Since corals are colonial animals (meaning, they grow in colonies), their skeletons grow together in large masses. These skeletons build up a chain of large stony structures called a reef.