Parasite Brugia malayi (worm): Cause of Filariasis What is parasites - biological definition Parasites are living things that extract the resources needed for their survival from other organisms. There are several species of these beings that parasitize humans. Some are harmless, but many cause serious illness.

Oviparous animal: reproduction includes egg laying What they are - biological definition Oviparous are animals whose reproduction form includes laying eggs in the external environment. Summary of Oviparous Characteristics and Information Oviparous females of many species lay their already fertilized eggs, as with many birds and insects.

Snake venom: large amount of toxins What is toxin Toxin is a poisonous substance produced through the metabolic activity of certain living organisms such as bacteria, insects, plants and reptiles. Knowing Toxins (Characteristics and Important Information): Some bacteria secrete toxins in the colonizing tissues, these are true toxins.

Paramecium: ciliate example What they are - biological definition Ciliates are protozoa that move through the movement of cilia. In some ciliate species, eyelashes are also used for food intake. These living things belong to the phylum Ciliophora. They can live in water or as parasites on the inner body of animals.

Brown Spider: Small but Very Poisonous What they are There are several species of spiders that have poison. By stinging a human being can cause, in addition to pain, various health problems. In some cases, they can even cause the death of the person who has been bitten if there is no prompt and effective medical treatment.

Vibrio Cholerae: Causer of Cholera (Microscope Image) What is Cholera is a disease caused by a microorganism named Vibrio cholerae, the choleric vibrium is a bacterium that has the ability to multiply at a rapid rate within the human gut. Knowing the disease this bacterium causes strong fermentation reactions in the digestive system and releases a potent toxin "triggering" of severe diarrhea.