The answer is A.
As the cold front passes, winds become gusty. There is a sudden drop in temperature, and also heavy rain, sometimes with hail, thunder, and lightning. Atmospheric pressure changes from falling to rising at the front.
Answer:
The correct option is D
Explanation:
A male sperm needs a x chromosome and y chromosome , whereas a female sperm needs 2 x chromosomes , Thus both genders needing x chromosome
A vinegar flavor
The fermentation of food is the breakdown of the food molecules, anaerobically.
Explanation:
Usually, anaerobic bacteria or yeast are able to break down molecules like glucose in the absence of oxygen because their main cellular respiration metabolic chain is glycolysis. The pyruvate that is formed at the end of glycolysis is readily converted to lactic acid by the cells before being excreted by the cells. This is why fermented food tastes sour like vinegar. Sourness is a general characteristic of acids.
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Answer:
Persistent infection
Explanation:
Viruses have the ability to remain in the host cell in a dormant state or latent state for many years. This is a part of reproduction cycle of a virus called the lysogenic cycle. This causes persistent infection in the host because the virus remains in the host cell and cause infection.
This persistent infection can cause cancer in the host because the viral genome incorporates in the host cell genome and take controls on its gene machinery. For example, HPV can incorporate itself in the host genome and can alter it which can cause cancer. So the correct answer is persistent infection.
Answer: Option B
Explanation:
Involuntary functions of the body system; processes taking place in the body that is done without conscious efforts such as digestion, bloodflow, the heartbeat are controlled by the autonomic nervous system which is a part of the peripheral nervous system.
