Identify the differences between bacteria, viruses, fungi and parasites Answer: Bacteria Bacteria are single-cell microorganisms which generally exist in large numbers and are microscopic in size. Bacteria can be either beneficial (bacteria in the intestinal tract aid digestion and are part of the normal body flora) or can be the cause of disease (for example pneumonia, food poisoning or bacterial meningitis). Viruses A virus is an infectious agent which can only live and replicate inside organism cells. The main difference between viruses and bacteria is that they are unable to reproduce in food – they need a living host cell to replicate. They replicate by infecting and taking over the functions of the host cell.
Because they lack chlorophyll, fungi cannot make their own food. Therefore, fungi must obtain nutrients by absorbing them from the environment. Fungi release digestive enzymes into the environment and their food sources are digested outside the cells of the fungus. When enzymatic digestion is complete, the fungus absorbs the nutrients that were released by this process. Microscopic fungi absorb dissolved nutrients from their surroundings directly through their cell walls.
a) Biotic describes a living component of a community; for example organisms, such as plants and animals. b) abiotic components (also known as abiotic factors) are non-living chemical and physical factors in the environment which affect ecosystems. c) Herbivores are organisms that are anatomically and physiologically adapted to eat plant-based foods. Herbivory is a form of consumption in which an organism principally eats autotrophs such as plants, algae and photosynthesizing bacteria. More generally, organisms that feed on autotrophs in general are known as primary consumers.
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.
Fungi are multi-celled organisms that form a third Kingdom of life, along with the plant kingdom and the animal kingdom. Parasites are plants or animals that derive benefit from the metabolism of other plants or animals at the expense of the host and without providing some benefit to the host in return. Bacteria is found in ever were and is able to adapt to its environment there is around 40 million bacteria in a gram of soil an d can live in either a symbiotic or parasitic relationship , and the human body controls bacteria by the use of anti-bodies in the blood system which makes the majority of bacteria harmless to use . A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants
Disease Yersinia pestis The Plague Jesus Urquijo Biology 113 Lab March 18, 2013 Microbes are what make the world what it is today. They are found in nearly every environment on earth. Each species has its own way of getting nutrients and adapting to its environment, such as pH, aerobic and anaerobic conditions, and enzymes that are essential for optimum living. The majority of bacteria living on earth are harmless if not beneficial to the human race, but those few microbes that are harmful to humans are those that cause disease. They are referred to as pathogens and need to be observed so we can prevent the spreading of disease caused by those particular microbes.
Q)What economic and ecological roles do honeybees play? A)They pollinate many of our fruit products. They also make it so we can grow these products and sell them without the great cost of hand pollination. 6Q)Describe the poaching of wild species and give three examples of species that are threatened by this illigal activity. A)Some protected species are illegaly killes for their valuable parts or are sold to live collectors.
When the original or natural organic plant life has been modified they can make crops 4 times larger than a naturally grown crop, they can even modify the plant can be genetically altered to have a pesticide to ward of insects that would normally kill off crops. Almost everything in our cupboards and on our tables has been somehow "genetically altered". A few examples of GMO crops are corn, soy, sugar beets,
It takes a day or two to completely kill the insect. Therefore the tarantula may eat it alive. Although the Tarantula is a big predator towards insect, it still has to have defense against its predators. It’s body I made up of many small, and irritating hairs. It defends itself by rubbing those hairs against its predator.
Biology assignment by Haider Hamad The Digestive system Introduction The aim of this project is to find out the difference between human digestive system and animal. Human Digestive System What is the Digestive system? The human digestive system is a complex series of organs and glands that processes food. In order to use the food we eat, our body has to break the food down into smaller molecules that it can process; it also has to excrete waste.Most of the digestive organs (like the stomach and intestines) are tube-like and contain the food as it makes its way through the body. The digestive system is essentially a long, twisting tube that runs from the mouth to the anus, plus a few other organs (like the liver and pancreas) that produce or store digestive chemicals.