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 solid, long-lasting structures. Their solidity is due to the fact that they are formed by the hard parts of the animal skeletons. Their longevity is due to their ability to resist shocks even after the death of organisms (cf. the high-rising primaeval reefs). The interstices are sealed and soldered by sediments and coral secretions.