To find the extinct species and their divergence of characters can be studied using molecular genetic techniques.
Explanation:
Paleontology is the study of ancient species and their remaining that were found millions of years ago. These species extinction can be found and manipulated to find out the origin or divergence of species from their origin
The samples of these species may contains their remains that help the biologist to isolate and analyze their protein or DNA. when the DNA is isolated their sequences can be generated using molecular biology techniques.
When the sequences are identified by advanced molecular biology techniques, the existence and similarities of different species due to their convergence or divergence can be identified.
By identifying the convergence or divergence the characteristics, evolutionary change in behavior, variation in appearance can be studied.
By using these techniques, biologist have found that <em>homo sapiens</em> are 99% have their similarities with chimpanzee
Thus, using genetics in paleontology helps us to understand adaptation a species is changing according to the evolutionary changes.
Most scientists were not yet concerned about global warming. This was because the major issue during the period between 1940 and 1970 was global cooling with little or no attention on global warming.
However things started to change due to more pollution as a result of technological advances. Global warming started becoming a concern between 1970s and 1990s because of the increase in steady surface temperature.
The disease phenotype is an observable characteristic or trait of a disease. It is influenced by the genetic make up and the surrounding environment of the organism. The appearance of symptoms, biochemical and physiological development of the disease is associated with the traits inherited from parents and also under the influence of the environment.
Pollution: The farming of marine fish, crustaceans and even bivalves produces waste in the form of fecal matter and unused feed. These largely nitrogen-based wastes can cause oxygen depletion in coastal environments and a net loss of marine productivity in certain coastal areas.
