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frozen [14]
4 years ago
9

Protozoan diseases are usually spread through _____. spore inhalation physical contact contaminated food or water cuts or other

injury to the skin
Biology
1 answer:
Volgvan4 years ago
7 0

Answer:

c) Contaminated food

Explanation:

Protozoans are single-celled organisms that could be either free-living or parasitic. Free-living forms could inhabit in the soil, moss, and even in aquatic environments. On the other hand, parasitic protozoans need a host to develop and reproduce.

A protozoan gastrointestinal infection could be <u>caused by the ingestion of cysts through contaminated food</u>. For instance, giardiasis could be spread through the ingestion of contaminated food or water or directly from person to person. Amoebiasis is also an example of a gastrointestinal infection caused by the protozoan <em>Entamoeba histolytica, </em>which occurs through the ingestion of  food that is contaminated with animals' feces, this occurs especially in developing countries.

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It involves oxygen, glucose, carbon dioxide, and water. - this is false, Both photosynthesis and cellular respiration involve oxygen, glucose, carbon dioxide, and water. Photosynthesis produces oxygen and glucose using carbon dioxide and water. Respiration produces glucose and carbon dioxide using water and carbon dioxide.

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