PARASITIC INTERACTION: When one organism (parasite) lives off another (the host), causing harm. The pearl fish utilises the sea cucumber as shelter by propelling itself into the anus of the sea cucumber. This relationship is parasitic due to the fact that the pearl fish feeds on the sea cucumber’s gonads. MUTUALISTIC INTERACTION: When both organisms benefit from the relationship. The clown fish and sea anemone have a mutualistic interaction, the anemone homes and protects the clownfish from predators
Words: 1587 - Pages: 7
Sharply rising energy and food prices have once again raised the spectre of the human population outstripping the planet's natural resources. Ever since Malthus, pessimists have believed that mankind is doomed due to overpopulation and over consumption, while optimists have argued that technological innovation will improve standards of living and that population growth is at most a minor issue (Lomborg, 2001 and Ehrlich, 2005). While this renewed debate at the global level receives widespread media
Words: 1765 - Pages: 8
Wildlife biologist can tell how many species a particular area can sustain. By examining factor such as disease, nutrition, habitat relationships, and population, he can tell how to maintain and conserve Wildlife populations. He can guess the browse that an animal needs in a particular location so that it must not starve further. Counting the number of deer he can assume the tentative number of wolves, to get some sight of the food chain. As we know, animals are the sentries for difference in the
Words: 907 - Pages: 4
within our control. People play a direct impact on the environment as well as the wild life. Unfortunately a lot of our negative actions have led to the extinction of various species. Animals can be broken down into three different species, threatened, endangered and extinct. Threatened Species can be defined as a species commonly found in an area, that is at high risk of becoming endangered. "A threatened species may have a declining population or be exceptionally rare. Similar to endangered
Words: 742 - Pages: 3
plants. 56. Broad-spectrum pesticides kill the good and the bad. 57. DDT initially saved human lives by getting rid of disease but is now taking them because of bioaccumulation. 59. Second generation pesticides are chemicals similar to insect hormones. 61. Human activities have affected earth’s biodiversity with habitat loss. 62. Biodiversity is important to the economy and stability of ecosystem. 63. Human activities that directly cause extinction are habitat loss, introduction of non-native
Words: 664 - Pages: 3
Modern humans (Homo sapiens or Homo sapiens sapiens) are the only extant members of the hominin clade, a branch of great apes characterized by erect posture and bipedal locomotion; manual dexterity and increased tool use; and a general trend toward larger, more complex brains and societies.[3][4] Early hominids, such as the australopithecines whose brains and anatomy in many ways more similar to non-human apes, are less often thought of or referred to as "human" than hominids of the genus Homo[5]
Words: 473 - Pages: 2
percent of Europe’s population from 1346 through 1353. The Black Death had not started in Europe, it came from rodents and there was a good side to the Black Death. It is believed the Black Death started in China or Russia. The disease was brought on trade ships to Europe. With increased population in Europe and improved methods of trade, the epidemic spread quickly. It spread all throughout Europe, to Northern Africa, the Middle East and by 1349 to England. Because of tiny populations and few
Words: 385 - Pages: 2
amount of cases of AIDS cases within the African American population. We will be discussing the general impact that changing demographics may have on the health care market, why and how changes in the demographics of this population will affect health care, and how a chronic disease wellness program may affect the costs for this demographic. There are many health care related challenges as well as marketing needs for the African American population that will also be presented. There is a variety of things
Words: 1295 - Pages: 6
Analysis of Noise impact on various parameters by Response Surface methodology for optimum Safe Working Area N.Boominathan1, G.K.Vijayaraghavan2, R.Kathiravan3 1Research scholar, Periyar Maniammai University, Vallam, Thanjavur, Tamilnadu. Email:nboominathan@gmail.com 2Principal, Dhaanish Ahmed college of engineering, Padappai, Chennai 601 301. Tamilnadu Email: haigkv@yahoo.com 3Professor and Head, Aerospace engineering department, Periyar Maniammai University, Vallam, Thanjavur, Tamilnadu. Email:
Words: 2835 - Pages: 12
Even though companies can benefit from a diverse workforce, there are challenges that come along with an ageing population. Technological advances can prove difficult for the older worker to catch on to. There can be contention between the younger and older workers due to differing work ethics. When the older worker leaves, they will take a lot of the company history and knowledge with them. Depending on management, the challenges of an ageing workforce can either help or harm a company’s operations
Words: 498 - Pages: 2
