Answer:
Option-A
Explanation:
Penicillin is an antibiotic drug that is derived from the fungal species of Penicillium molds especially the<em> Penicillium notatum</em>. The penicillin acts by disrupting the formation of the cell wall and thus prevents the growth of the bacteria.
The discovery of penicillin was accidental when he was studying the petridish of staphylococcus and he found that due to avoidance while the experiment, molds grew in the petridish. The area around the mold was clear and clear rings without the bacteria were easily observed. This lead to the discovery of the penicillin compound.
Thus, Option-A is the correct answer.
Answer:
The skin is made up of two main layers
Epidermis: The epidermis is made up of closely packed epithelial cells.
Dermis: The dermis comprises of dense type of tissues which are known as connective tissue.
The tissues present in the stomach are:
The mucous membrane of the stomach comprises of epithelium tissues.
The stomach is also lined my muscle tissues called rugae. These tissues help in the contractions of the stomach.
Tornado
1.Travels repetitively short distances before loosing its energy
2.Common in the plains states of the United States
3.Process begins when the ground is heated to high temperatures
Hurricane
1. Develops over warm ocean water heated by the sun
2. Equivalent of a typhoon
3. Loses strength when moving from water to land
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The possible father's blood groups are B, AB.
<u>Explanation:</u>
If the mother blood type of A, and the father blood type is AB, B then the child is B. Each biological parent donates one of their two ABO alleles to the child. The blood types in our body are classified as the four paternal blood types and the four maternal blood types.
The blood type has the 16 combinations of the blood samples. The genetic information from the body is independently inherited to the ABO blood types alleles. In the Rh factor, the genetic information is inherited from the one parent to another.