Aerosol spread or transmission is one of the ways bacteria and viruses spread from one host to a new one. It is by no means a fully effective route and the success of a particular bacterium or virus particle is…
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Photosynthesis is the basic mechanism that plants with chlorophyll use to to convert sunlight into energy. Like all living things, plants, algae and human beings need some way of turning the food they take into the body’s most basic unit…
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Algae come in mostly red and green. Most freshwater algae are green. This is the stuff that makes water turn green when it is becoming stagnant. Algae tend to be long filaments of plant material although some can exist as…
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In a small community of about 5,000 people, a wastewater conduit got leaked and there was spillage all over the the place.A so-called expert was invited by the local community administrators to look into the problem and proffer solution. According…
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The life cycle of the Ascariasis, also known as a roundworm, is very common, and is found in about 25% percent of human beings. It is a parasite with a complex life cycle. It is most commonly spread by unwashed produce, or…
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Lichens are comprised of a symbiotic relationship between an algae and a fungus. The green or blue-green algae produces food via photosynthesis that the fungus can eat. The fungus provides an anchor, moisture, and nutrient source for the algae. Together,…
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Mycology is the study of fungi. Fungi such as mushrooms, toadstools, yeasts and molds were historically thought to be plants, but are in fact neither plant nor animal but a completely different species in their own right. While Mycology may…
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Theileria causes disease in domestic and wild animals as a parasite on ticks. Millions of animals are at risk every year. This parasite has the capability of causing a worldwide food shortage and total devastation to poor farmers in the…
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“Are human beings still part of nature” I can see the debatable curve on this question. I have known a few people, including my ex-husband who would not be considered human much less part of nature. And then the other…
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Paracelsus’s homunculi and Asimov’s robots: the laboratory ethics of personhood and artificial life in medieval and modern thought. What is the most important thing about living beings? This question, abstract and philosophical as it sounds, has direct applicability to questions…
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