BIO 112 – Spring 2016 Chapter 27 study guide Key Terms Speciation | Phylogeny/phylogenetic tree | Species | Subspecies | Genetic isolation | Allopatry | Genetic divergence | Allopatric speciation | Biological species concept | Dispersal | Reproductive isolation | Vicariance | Prezygotic isolation | Biogeography | Postzygotic isolation | Colonization | Temporal isolation | Sympatry | Habitat isolation | Sympatric speciation | Behavioral isolation | Disruptive selection | Gametic barrier
Words: 529 - Pages: 3
In the novel, Lord of the Flies, the boys show the concept of Social Darwinism. The boys showed their level of strength by either dying or surviving when on the island. The concept of Social Darwinism is the natural selection of people best suited to live in society. This novel ties to the article Social Darwinism because some of the boys are stronger than the others, causing them to survive and the weaker to die. The novel Lord of the Flies represents a concept of Social Darwinism because the boys
Words: 699 - Pages: 3
and Sexual Selection The evolution of the human race notably displays the changes that occur in the physical body in reaction to external changes, but it is equally interesting to explore the evolution of the human brain and its successful attempts (through its immense intelligence) to overpower its own biological and instinctual goals. In our lectures, specifically under ‘Evolutionary Psychology’, Davies introduced sexual selection as a part of biological evolution, referencing an experiment conducted
Words: 802 - Pages: 4
------------------------------------------------- Many Pathogenic bacteria are becoming resistant to antibiotics, explain how such adaptations can develop through the process of natural selection. Exam # 25010400 Exam # 25010400 January 17, 2016 kelsey duff January 17, 2016 kelsey duff Natural selection is the process that results in adaptation of a population to the biotic (living) and the abiotic (nonliving) environments. In the biotic environment organisms acquire resources through
Words: 333 - Pages: 2
Human beings have reached the top of the food chain due to evolution and they have evolved to not only become intelligent but also answer the previously unanswered questions of the universe. I want to be able to study these fascinating creatures and figure out how they have arrived to this point by examining their genes. Apart from the main science subjects (biology chemistry and math) I have also taken economics at AS level as I have always been fascinated by what funds a country and how money
Words: 673 - Pages: 3
The very short answer is yes, we should definitely be concerned with the rate of extinction. According to Chivian and Bernstein although extinction is a natural phenomenon that occurs at a rate of about one to five species per year, we are now losing species at 100 to 10,000 times that rate. There are literally dozens of species going extinct every day (Chivian & Bernstein, 2008). We should also be concerned because while past mass extinctions are believed to have been caused by events like
Words: 348 - Pages: 2
how does human activity affect nature? human activity affects nature in many ways, as time goes on and civilization advances nature pays the toll more and more. due to the number of the human population rising constantly more and more animals need to be killed for food but in the lines of nature more space is required for living so forests may be cut down meaning less oxygen in the air which increases harmful gases in the air which could lead to more acid rain so more plants could be killed. we
Words: 367 - Pages: 2
: upload.wikimedia.org/wikipedia/commons/3/3a/Herbert_Spencer_5.jpg He is believed to be the most notable exponent of social evolution. He is also considered as the father of classical evolutionists. In 1848 he was appointed as an editor of “The Economist”. By 1850, he had completed his first major work, “Social Statics”. He is famous, for his theory of’ Social Evolution’ and Organismic Analogy in the study of Sociology. Some of his important writings are: (i) Principles of Ethics-1891 (ii)
Words: 1157 - Pages: 5
Sand 1 Gianina Sand English 1301-044 Professor Peterson 12 April 2015 Paper 5 Sharks need help Sharks rules the ecosystems. They balance the oceans, they balance earth. Sharks are on earth for over four hundreds millions years, one hundred million years before the dinosaurs when life has just began. Sharks were shaving the world. Sharks are afraid of us, they can sent our energy as soon as we are in the water. Two third of earth is under water and over 80% of life on earth is in the oceans
Words: 732 - Pages: 3
Kelsey Williams Professor Reiner March 29, 2016 BIOL-108 Island Biogeography Lab Write-Up Purpose of lab: Calculating how many species were migrating to different islands Hypotheses: The main factors are island size and distance from the island. We hypothesized that islands close to a source area should have a higher number of species than islands further from the source area for islands of equivalent areas. Larger islands should have more species than smaller islands for islands
Words: 731 - Pages: 3
