The parasite is dependent on its host for survival, it has to be in the host to live, grow and multiply. Although a parasite rarely kills the host, in some rare cases it can happen. It uses the host to gain strength, and the host becomes weak. It is responsible for causing various diseases such as, malaria, tapeworm, ringworm and roundworm. There are also parasites which live on the
Some fungi have beneficial uses. For example, penicillin and yeast for baking. Thrush is a common fungal infection. Parasites are small organisms which depend can only live on a host. Plants, animals, humans, fish, birds and reptiles can all be host to parasites.
Viruses can be very tough and there are not many effective medicines available for viral diseases. There are currently 21 families of viruses known to cause disease in humans. Fungi like to grow in warm, moist places. Some fungi can be beneficial to us such as penicillin, but certain types of fungi can be harmful to our health. Like bacteria and viruses, some fungi can act as pathogens.
It has been recorded at a number of sites within the park. The fungus has the potential to impact of the vegetation, especially along the heathy ridge tops where grass trees are dying. It also affects a lot of the native vegetation and causes the death of a lot of other species. The disease spreads naturally but also through infected soil when transportation travel over it. Quarantine and vehicle hygiene to limit the spread can only be achieved my
Some of the plants in the Rideau River are carnivorous. o Yellow-flowered bladderwort captures and digests microscopic invertebrates. o Invasive plant species: Eurasian Water Milfoil is a plant that grows in thick tangles. These plants can reproduce very quickly because they do not rely on seeds alone to spread. Eurasian water milfoil can grow out of clippings from the plant.
Amphibians, reptiles, invertebrates and small mammals are part of their diet too. Unfortunately, eating these organisms can sometimes put endangered and rare species at a greater risk. Corn, barley, wheat, seed, grain and oat crops are the main vegetation that they feed on. Figure 1 & 2 (last page) shows the extent of feral pigs impact on threatened species in 2008. Feral pigs usually stay close to water so they can drink regularly and to control their body temperature, as they are extremely susceptible to heat.
These diseases are difficult to manage due to their highly heterogeneous incidence and lack of information regarding the epidemiological aspects of these pathogens. Only through study on survival, dissemination of soil borne pathogens, its effective management is possible. Effect of climatic conditions with role of cultural practices and host resistance-susceptibility will play a major role in management of disease.
Many different types of traps have evolved during this time, each with its own benefits and costs, and each with their own process of obtaining nutrients from their captured prey. Carnivorous plants are traditionally separated into two groups based on degrees of carnivory. Carnivorous plants are those plants which are capable of trapping, killing and digesting prey with no help from outside organisms. Sub-carnivorous plants are those plants which can trap and kill insects, but rely on other organisms for digestion. (Scott, 2008) Three groups of carnivorous plants will be discussed in this paper, with specific representations for each.
1.1 & 1.2 Bacteria~ These are single cells that can divide and multiply rapidly and come in different shapes and divide anywhere such as M.R.S.A, septicaemia and gastro-enteritis. Viruses~ Are ready made stable D.N.A with a protective shell, they cannot invade without the assistance of another cell to do so, examples of these are the common cold, flu and hepatitis. Fungi~ Are simple plants such as yeasts and moulds or even rusts that thrive in moist, dark, unventilated areas like thrush, ringworm or athlete's foot. Parasites~ Are animals or plants living in or on the host, usually small creatures that are living on or within us such as lice, scabies, tapeworm or threadworm. 1.3 What is meant by….
CAUSES AND SPREAD OF INFECTION 1. Understand the causes of infection 1.1 Identify the differences between bacteria, viruses, fungi and parasites Bacteria - Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals.