Dysentery is caused as a result of bacterial infection caused by an unusual strain of E.coli. The E.coli is found normally in the intestine but during infection watery diarrhea along with mucous and blood is there.
Dysentery can also be caused by other infectious pathogens such as bacteria, parasites or viruses. The infection is caused when the pathogen enters the large intestine via mouth due to consumption of contaminated water or food, oral contact with the objects which are contaminated.
The treatment to the infection is through antibiotic drug.
Answer:
First, it's important to get clear on the meaning of Homeostasis.
In simple terms, it refers to the capacity of a living thing (plant or animal) to react or behave in such a way that enables it to continue to survive irrespective of changes in its immediate environment.
Explanation:
In humans, the body has a system which reacts to the external stimuli of temprature. When the weather is hot, the brain through a sequence of electrical and chemical signals tells the skin to open up the pore, then we experience venting of sweating which cools the body and regulates internal heat. This is an instance of homeostasis.
This does not mean that the plant or animal is completely immune to such external changes.
In the case of the tomato plant, the hair on the leaves and stem of the plant is an example of Homeostatic responses which have evolved over the years to discourage predators such as the hornworm caterpillar from defoliating the plant.
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Answer:
The answer is C
Explanation: The random change in the gene pool is due to genetic drift. Remember, genetic drift occurs at a more rapid rate when the population size is reduced. The flood is a random occurrence. It could have as easily been a drought.
Answer:
Water slips between cracks in rocks on earth this is called weathering but on the moon there is no water so this cannot happen.
