Hello. You forgot to put the image that complements this question.
The image is attached below:
Answer:
A = 38.465.
Explanation:
To arrive at the result you will have to perform a very simple calculation, using the fromula shown in the question above.
First, it will be necessary to find the diameter of the figure, to
therefore, you will have to divide, which will result in 3.5.
You can now replace the values in the formula: A = (3.14) (3.5) ² = (3.14) (12.25)= 38.465.
Acquired immunity is the type of immunity that exists when a person is exposed to an antigen and subsequently makes antibodies against the antigen.
Immunity is the defense mechanism of the nervous system to avoid pathogens affecting the body and making it sick. There are two major types of immunity: innate and acquired. Innate immunity is the kind of immunity present in the human body by birth. Whereas, acquired immunity is gained over time.
Acquired immunity specifically promotes the antibodies or lymphocytes to inhibit the action of pathogens when it encounters one. It is further categorized into two types: active and passive immunity.
Active immunity indulges in the primary response to a pathogen. It produces antibodies to fight against it and preserves some to fight against the same pathogen encountered for the second time. Passive immunity, in addition, involves the medications prescribed to enhance immunity.
To know more about acquired immunity, refer to the following link:
brainly.com/question/26864713
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A semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
What following ? actually the cell will gain more water by diffusion and will let more sodium chloride ions in because they will move from high concentration to low concentration
Modern Prokaryotes are sing celled organisms without complex organelles.
Hope I helped :-)
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