AO isn’t and type of blood
Answer:
Anthihistamine
Explanation:
Antihistamines (like benadryl) are blocking the histamine receptors in the brain.
According to the research, the correct option is Period of invasion. The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is the Period of invasion.
<h3>What is an infectious disease?</h3>
It is the disease that is due to the invasion of the body by pathogenic germs, which establish and multiply caused by a local cell injury, secretion of toxins or by the antigen-antibody reaction.
The stage of an infectious disease called the Period of invasion is the time interval between invasion by an infectious agent and the appearance of the first signs and symptoms of the disease.
Therefore, we can conclude that according to the research, the correct option is Period of invasion. The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is the Period of invasion.
Learn more about stages of an infectious disease here: brainly.com/question/14454614
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Answer: The difference between abdominal cavity and abdomen are mentioned as follows:
- Abdomen is the part found in middle of the chest and the pelvis whereas abdominal cavity is located below the abdomen .
- Abdomen is considered as a area with lot of muscles whereas the abdominal cavity is a hollow room consisting of the various internal organs.
- For seeing an abdomen,naked eye is enough under the natural circumstances while the abdominal cavity requires to be opened for seeing the parts present inside it.
