Articles related to "Protozoans"



Protozoan Parasites in Dirt
Many protozoan parasites have a hardy stage that survives for long periods in soil and water. Others normally thrive and multiply in the environment.
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What are Protozoa?
From the Greek proto, meaning first, and zoa, meaning animal.
protozoa smallest of animals one-celled moist environments protozoan development

A Handful of Soil
A handful of good soil should hold billions of bacteria, millions of protozoa and other microbes, thousands of tiny arthropods and hundreds of larger organisms.
soil bacteria aerobic bacteria anaerobic rhizobia

Micro-Organisms
A handful of good soil should contain billions of bacteria, millions of protozoa and other microscopic animals, thousands tiny arthropods invisible to the eye, miniscule
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Birds and Trichomonas gallinae
The deadly parasite Trichomonas gallinae can be spread among wild birds at feeders and bird baths. Bird watchers can avoid accidentally spreading this and other diseases.
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Cryptosporidium parvum - Parasite
Cryptosporidium parvum is a tiny parasite that causes outbreaks of diarrhea. Drinking water is one source of this parasitic disease, but there are others.
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Soil – Earth’s Living Layer
In nature, soil is alive and is constantly being created. In gardens, we can and should make our own.
soil rock minerals microbes bacterial

What is Cryptosporidiosis?
A tiny protozoan parasite, Cryptosporidium is a common cause of diarrhea and a particular threat to those suffering with AIDS. It infects both humans and animals.
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What is Trichomonas gallinae?
A short article describing Trichomonas gallinae, a protozoan parasite of pigeons, doves, raptors, and other wild birds.
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The Patterns of Evolution
Evolution may take several paths. Species may evolve apart (diverge), evolve similar structures and appearances (converge), or evolve together (coevolve).
divergent evolution convergent evolution coevolution patterns of evolution selection pressure

Parasitology 101 – Words That Describe Parasites
Reading about parasites can be confusing because of all the specialized words that scientists use. This brief parasitology glossary can help.
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Walkerton tragedy highlights microbial ecology
The deadly <i>E. coli</i> outbreak in Walkerton draws attention to a fascinating and essential aspect of life on earth.
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Sputnik - Now a Virus Satellite
Newly discovered cell-sized viruses have an infecting satellite virus, with implications for viruses as life forms, cell origins, the cause of disease and its treatment.
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The Causative Agent of Amoebiasis
Amoebiasis is one the major killer diseases in the tropics. The cause of this disease is a protozoan, which is the only pathogen among a number of enteric amoeba.
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How to Kill Bacteria and Other Microbes
Heat, UV radiation, antibiotics and chemicals are all used to control bacteria, viruses and other microorganisms. How to they kill pathogens without hurting our cells?
how to kill microbes how to kill bacteria control bacterial pathogens control viral pathogens microbial control heat

Human Evolutionary Tie to Choanoflagellates
New research provides more evidence that ancestors of modern choanoflagellates may be the evolutionary bridge linking single-celled and multi-celled organisms.
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Identifying Freshwater Aquarium Fish Diseases
Some fish diseases are common and others are rare but knowing their characteristics is helpful in the prevention and cure.
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Zoonotic Diseases
Zoonotic diseases are a fact of life for anyone handling livestock.
zoonotic disease zoonotic disease zoonotic

MOA of Tetracycline Antibiotics
Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do tetracyclines destroy bacteria without hurting our cells?
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Babesiosis
Babesiosis is lesser-known than most other tick-borne diseases. It may be a co-infecting agent with other organisms transmitted by ticks, and it can remain quiescent.
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Common Diseases in Aquarium Fish
The most common diseases that afflict aquarium fish are ich, velvet, and fungus infections. Untreated, these diseases can kill fish, but prompt action usually cures them.
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Biological Controls in the Garden
a brief description and table of biological controls available to the gardener for controlling common pests and diseases
rose garden pest insect disease aphid

Toxoplasma gondii and Behavior
Research on Toxoplasma gondii, a cat parasite, suggests that chronic infection causes subtle behavioral, personality, and psychological changes in infected people.
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Traveler's Diarrhea
As many as 50,000 travelers a day suffer from traveler's diarrhea in high-risk countries. Risk is associated with destination, length of stay, and level of accommodations
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Grasshoppers
Grasshoppers seem harmless enough, but have you ever really thought about what they eat? I'm sure mid-western farmers could tell you all about them. Read about grasshoppers and see for yourself if they are good or bad bugs.
grasshoppers bad bugs pests garden pests

Dale Brown Emeagwali - Microbiologist and Community Leader
Dr, Dale Brown Emeagwali is a recognized teacher and researcher at Morgan State University. She combines a love of research with a strong desire to encourage young people to study science.
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SRW Tip#11: Dispose of Old Rose Chemicals & Check Expiration Dates
garden chemicals disposal expiry expiration dates biological controls

How to Frag - Coral Propagation
Many reef aquarists "frag" their coral to produce multiple individual "children" from a single mother colony. Here's how to frag your own coral.
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Silent Sexually Transmitted Infections (STIs)
Medications and vaccines are available to treat and prevent some STIs. Still these diseases are on the rise. Many cause no symptoms; spread by those unaware of infection.
std symptoms stis with no symptoms sexually transmitted diseases without symptoms asymptomatic sexually transmitted infections incidence of gonorrhea

Symbiotic Relationships between Microbe and Host
There are three types of symbiotic relationships that microbes can have with their host organism: mutualism, commensalism and parasistism.
types of symbiosis mutualism commensalism parasitism mutualistic microbe

New Biopesticides for Roses
New insecticides and fungicides to look for in the future.
roses disease fungicides pesticides environment

THE PROMISES OF THE HUMAN GENOME PROJECT
More than 15 years ago the Human Genome Project (HGP) was started as an international effort to decode its billion of bases.
bioinformatics pharmacogenomics proteomics transcriptonomics genes

Walking Batfish in the Aquarium
As a rule, walking batfish are best left to advanced aquarists, as there are many challenges in the feeding, housing, and maintaining of these unusual bottom-dwellers.
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What is Toxoplasmosis?
Toxoplasmosis can be deadly if you have a weakened immune system. The parasite can live in the human body forever without causing any symptoms.
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A Description of Marine Parasitism
Marine parasites represent an important part of ocean ecology.
parasites parasite parasitism ocean under the sea

Early Germ Theory of Disease
Germ Theory is the concept that microorganisms can cause disease, and this theory is the foundation of modern medicine. Here is a summary of some key discoveries.
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Isla Grande Hotels, Colombia
Isla Grande is a 45-minute boat ride from Cartegena de Indias on Colombia's Caribbean Coast. Hotel CocoLiso and Hotel San Pedro de Majagua are two popular hotels.
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The Different Feeding Methods Of Animals
Whether they absorb molecules across the body surface or swallow live prey, all animals must get their energy from a food source. Here are the ways they do this.
food absorption endocytosis filter feeding fluid feeding seizing prey

What are Normal Flora?
The human body is made up of about 10 trillion cells, but hosts 100 trillion more. The vast majority of cells living on and in the body are bacteria and other microbes.
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What Is A Cell? Basic Overview Of An Animal Cell
All organisms are made up of cells. There are single-celled and multi-celled organisms. Here is a brief overview of what a cell consists of, and some of its functions.
eukaryotic cell prokaryotic cell eukaryotes prokaryotes what is a cell?

Acanthamoeba – Eye Parasite
Acanthamoeba spp., amoebae that live in water and soil, can hitch a ride on a contact lens, then invade a vulnerable eye and destroy the cornea.
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Christmas Pets and Disease Transmission
Thinking of giving someone a pet for Christmas? Most people don't consider their pets a health risk, but 75% of new human diseases can be traced to animals.
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Coccidiosis in Puppies and Kittens
Coccidiosis is a disease caused by a microscopic parasite known as coccidia. Coccidiosis is common in kittens and puppies and can cause severe diarrhea with dehydration.
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Giardia lamblia and Giardiasis
Giardia lamblia contaminates surface water all over the world and can cause an unpleasant prolonged intestinal illness known as giardiasis, or beaver fever.
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Goldenseal
Goldenseal is used sparingly by most herbalists due to its rarity and intense effects.
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Grasshopper Pest Control in an Organic Garden
Grasshoppers are common garden pests in the summer months, feeding on flower and vegetable gardens. Use organic and natural pest control methods to stop these insects.
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Hardiest Anthias Species
While anthias have a reputation as being "expert-only" fishes, a few species are appropriate for the intermediate aquarist.
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Human Parasites in Soil
The infective stage of many human parasites is found in soil, but not just any soil. How they get there, and how they infect people, isn't so straightforward.
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Interesting Facts About Pinworm
Scientists have discovered a number of interesting facts about pinworm infection, as well as the life cycle, close relatives, and history of Enterobius vermicularis.
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Keeping Anthias in the Tropical Marine Aquarium
Considered difficult-to-keep, anthias are some of the most beautiful fishes available to the marine aquarist. Understanding their needs makes it possible to have success.
anthias fancy sea basses fairy basses keeping anthias feeding anthias


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