The seminal work that defined and provided a structure for the concept of cultural. competence was a monograph published in 1989 by the Georgetown University Child. Development Center through a contract with the Department of Health and Human. Services as part of the Child Adolescent Service System Program (CASSP).
Insects also probably have the largest biomass of the terrestrial animals. At any time, it is estimated that there are some 10 quintillion (thatâs 10,000,000,000,000,000,000 for those who like actual numbers) individual insects alive. In the United States, the number of described species is approximately 91,000.
Mammals make up one of the smallest groups, with just 5,513 members. Altogether the earth's oceans, lakes, continents and islands support over 66,000 identified species of vertebrate animals and more than 307,000 species of plants. How many species known to currently exist in the world. Category.