Yellow fever is an example of a communicable disease. Infectious disease is when bacteria, protozoans, fungi, or viruses enter the body, which will grow and produce more of their own kind. An example for an infectious disease would be like food poisoning or having upper respiratory tract infection. These terms are similar because both can harm the person that is sick. 2) What are the types of disease (by occurrence)
This occurs due to wrong coding for the protein in haemoglobin which causes haemoglobin to not form properly. This anaemia is a recessive gene and when an individual is a carrier, it provides an advantage against malaria. Malaria is a life-threatening blood disease caused by a parasite called Plasmodium that is transmitted to humans by an infected Anopheles mosquito through biting. Malaria is a preventable and treatable disease (MNT). Both sickle cell anaemia and malaria happen in Africa, South America and in some parts of Asia and the most deaths caused by the malarial
An Unfortunate Result to Cultural Collision With the increased technology of today’s world, cultures collide constantly, and these interactions can either have positive results of a blended culture, or negative results of horrible tragedies and acts of violence. However, this trade of cultural ideas has been occurring for several thousand years, all over the world. The novel, Things Fall Apart, by Chinua Achebe, is a breathtaking novel about the struggles of the African tribe of Umuofia to change their lifestyle to comply to that of a powerful group of white foreigners that invade their land. The collision of cultures is adapted to by some better than others, and the novel seamlessly conveys the results of each response to the newcomers, as
Babesiosis represents an emerging zoonotic tick-borne disease caused by intraerythrocytic protozoan parasites of the genus Babesia, which are transmitted by hard-bodied (Ixodes) ticks. Several different species are known causes of disease in humans, most notably Babesia microti, Babesia divergens and Babesia duncani. Babesia infection may be completely asymptomatic or may present with an illness with a severity range from mild to fulminant, sometimes even resulting in death. Thus a complete descriptive history that includes clinical manifestations, travel history to endemic areas, tick bite or exposure, splenectomy, as well as a recent blood transfusion should be conducted.
Sexual selection is another mechanism of evolution that involves the passing down of more attractive and appealing traits. The final mechanism is natural selection and this mechanism is the most important for evolution. Natural selection is the selection of individuals that possess more favorable traits in an environment. These favorable traits will be passed down to future
2 Sexual selection A special type of natural selection in which the sexes acquire distinct forms either because the members of one sex choose mates with particular features or because in the competition for mates among those with certain traits succeed. If females base their sexual selection on a mate who has favourable characteristics, then the smaller sized individuals will be selected against (Gayon.2010). Inside the Origin of Species it was found that Charles Darwin deposited a second theory of evolution. This process occurred not only as a result of natural selection, but also on the fittest individuals and mentioning that "a struggle between males for possession of females" was a main challenge for mating (Allen.2014).
Introduction: Genetically modified organisms can be defined as organisms in which the DNA has been changed in a way that does not occur naturally by any reproduction procedure. The enviropig is just one of many organisms that they did experiments on to modify it to have specific (needed) outcomes. The reason for genetic modification is to be able to change a product or organism so that it deliver desirable traits. The enviropig was created to solve the problem of pigs not being able to absorb enough phosphorous from their diet, which then in its turn contributes to the larger factor of pollution.
“STUDY OF VIRULENCE FACTORS AND ANTIBIOTIC SENSITIVITY PATTERN IN ESCHERICHIA COLI STRAINS ISOLATED FROM EXTRAINTESTINAL INFECTIONS” INTRODUCTION Escherichia coli (E. coli) is one of the most important members of the family Enterobacteriaceae and a commensal in the human intestinal tract. (1) As a commensal it contributes to the maintenance of health of a person. However, E.coli when enters into unnatural sites, can cause variety of conditions such as urinary tract infections, wound infections, bacteraemia, meningitis and other soft tissue infections. (2, 3) Of the different organisms known to cause urinary tract infections (UTI)
Environmental change plays an important role in evolution. When an environmental change occurs, it can be a physical or chemical change. It can also be a gradual process such as the formation of mountains, or it can be a rapid and unexpected change, such as a natural disaster. When changes in organism’s environments occur, they must adapt to their new environment, this can cause ample amounts of selective stress and pressure on organisms, causing some species to eventually die out, while other organisms strive and evolve to be better adapted to this change.
Herpes, or Herpes Simplex is a viral infectious disease that results in very dangerous and ridiculous skin infections. The cause of Herpes is the Herpes Simplex Virus (HSV) and the infections are categorized on the basis of the body part infected by them. Herpes is of two basic types, namely Oral Herpes and Genital Herpes. Oral Herpes is the condition when the infection, in the form of blisters is over the face, inside the mouth, and over the scalp, while in case of Genital Herpes infections are over the genitals as well as on the buttocks. Herpes Simplex Virus is broadly divided into two types, namely Herpes Simplex Virus type-1 and Herpes Simplex Virus type-2 (more commonly referred to as HSV-1 and HSV-2).
Dr. Moalem’s Survival of the Sickest provides insight into the biology of evolution and its connections to various diseases, whether it be a mild flu or stage 4 lung cancer. The book discloses the astonishing fact that every organism is affecting the development of another organism, or as he puts it, “The bacteria and viruses and parasites that cause disease in us have affected our evolution as we have adapted in ways to cope with their effects.” (Moalem XV) Another frequently mentioned topic in Survival of the Sickest is natural selection. Natural selection is most famously known through Charles Darwin, in which Christ’s College Cambridge states, “Evolutionary change comes through the production of variation in each generation and different