Protozoa

water chlorination have been developed to achieve water quality. This procedure has exhibited notable decreases in diarrhoeal diseases, and has shown prolonged disinfecting effects on many microorganisms when used with ammonia. However, there exists protozoa that are resistant to chlorination, and such spores have led to outbreaks that resulted in a decreased economy and an infected population. Moreover, the toxic and corrosive nature of the chlorinating products exposed to employees in the…

This essay illustrates the classification of antagonists according to their characteristics. The classification of antagonists is divided into two main categories, receptor antagonists and non-receptor antagonists. In receptor antagonists, it would be divided into competitive antagonists and non-competitive antagonists. In non-receptor antagonists, divided into chemical antagonists and physiological antagonists. In different categories, there are different examples to support the feature of the…

transmitted diseases (STD) or infections (STI) refer to “a variety of clinical syndromes caused by pathogens that can be acquired and transmitted through sexual activity” (Schuilig&Likis, 2013, p. 485). There are a variety of bacteria, viruses, protozoa, and ectoparasites that may contribute to the cause of a sexually transmitted infection. The knowledge of these microorganisms contributing to the infection resulted in changing the term from venereal disease, which primarily referred to…

Water is a transparent, odourless, tasteless liquid, a compound of hydrogen and oxygen freezing at 30°F or 0°C and boiling at 212°F or 100°C, that in a more or less impure state constitutes rain, oceans, lakes, rivers etc; it contain 11188% of hydrogen and 88.812% of oxygen by weight. (Dictionary.com) The Earth is surrounded by 70% of water, however, that 70% is composed of salt water and fresh water. The salt water is made up of 97% and fresh water is 3%. 2% of the fresh water is frozen up in…

Take Home Test Bird Flu The 1918 influenza epidemic brought about millions upon millions of deaths due to the unexpected mutation of the virus and the low healthcare potential. Nowadays, if the bird flu was to become capable of spreading through respiratory droplets in an effective manner, healthcare would be able to save millions of lives despite the severity of the disease. It is worth noting, however, that the disease might not be contained, leading to a great portion of the world population…

THE FOODSERVICE MANAGER Foodservice Managers are the overseers of foodservice establishments such as restaurants, hotels, and school cafeterias. They direct the daily operations of the establishment to which they’re employed and their authority extends from the kitchen to the dining room. Their duties include recruitment and hiring, training, motivating staff, supervising staff, managing inventory & procurement, ensuring the right equipment and supplies are available, arranging for the…

The average household is not doing enough to reduce or reuse waste products. As a result, landfills are filling up with potential reusable waste. Due to lack of knowledge on how to compost food, food waste can make up nearly 20% of the municipal solid waste (MSW) at a landfill (Nadakavukaren, A., 2011). Greater community education and outreach is needed to help individuals, families and communities compost on a regular basis, and reduce the amount of food waste in our landfills. According to…

Hiltner was the first person to use this term rhizosphere and expressed it as the distinct zone of soil where microbial population develops due to exudation of root (Hartmann et al. 2008). A large population of microorganisms including bacteria, fungi, protozoa and algae extensively interacts with roots of plant in the rhizosphere. The density of bacterial population is tremendous in the rhizosphere so it is speculated that bacteria…

Outline I. Introduction II. Biogeochemical cycles 1. Water cycle 2. Carbon cycle 3. Nitrogen and Phosphorous cycles 4. Biodiversity III. Impacts of the Water bottle product on the life cycle of water, Carbon, Nitrogen/Phosphorus and biodiversity 1. Water cycle 2. Carbon cycle 3. Nitrogen/Phosphorous cycle 4. Biodiversity IV. Interventions on the environmental impacts 1. Benefits i. Water cycle ii. Carbon cycle iii. Nitrogen/phosphorous cycle iv. Biodiversity 2. Drawbacks i. Water cycle ii.…

In 1817 Georges Cuvier created four major branches with different body plans, namely vertebrates, molluscs, articulated animals, and zoophytes. In 1874, Ernst Haeckel divided the animal kingdom into the multicellular Metazoa and the single-celled Protozoa (no longer considered to be animals). Today the classification of animals relies on advanced techniques such as molecular phylogenetics, which continue to unveil the evolutionary relationships between animal groups. Humans make use of many…