Answer: B) Trypanosoma brucei
Explanation:
Trypanosoma brucei is a parasite which belongs to the genus of Trypanosoma. The parasite is distributed by the vector. It causes sleeping sickness in humans. The symptoms associated with the parasite includes the fever, headache, mental confusion, problems in coordination, skin rash, swollen lymph nodes and itching. T. brucei is transmitted by an insect vector to a host mammal.
The muscles surrounding the airways contract
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One of the signs that sleep is necessary is that all living creatures are harmed by lack of sleep. Correct answer: A Sleep serves important evolutionary functions for all animals, because sleep helps animals consolidate memories and learn. Animals sleep according to how much they eat – animals that eat food with a lower caloric density sleep less than others. However, lack of sleep and if the deprivation is long enough it can kill animals.
