Answer: during the course of infection the parasite, Giardia lamblia, pass through many anatomical locations to achieve its pathogenic effects which occurs in one host.
Explanation: infective form of the parasite is the mature cyst. Infection is acquired through ingestion of cysts in contaminated water or food. From the mouth the cyst passes down to the duodenum where it undergoes excystation. The cyst hatches out two trophozoites. By means of concavity on its ventral surface the trophozoites attaches to the epithelial lining of the small intestines. Encrustation occurs commonly in transit down the colon. Trophozoites retract the flagella into the axonemes, the cytoplasm becomes condensed and a thin tough hyaline cyst wall is secreted. As the cyst matures, the internal structures are doubled, so that when excystation occurs, the cytoplasm divides thus reproducing two trophozoites. Trophozoites are expelled through the anus with diarrhoeal stools.
It is during anaphase I of miosis that the sister chromatic are separated and pulled to the opposite sides of the cell
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Answer:
I say c
Explanation:
seems really along with the question unlike b but could also be d
