The basic type of vaccines are:
nucleic acid vaccines
subunit vaccine
live, attenuated vaccine
An easy, secure, and reliable method of preventing hazardous infections before you are exposed to them is vaccination. It boosts your immune system and builds up your body's natural defenses against particular illnesses.
Your immune system is trained by vaccinations to produce antibodies, exactly as it does when it is exposed to a disease. However, because vaccinations only include dead or weakened versions of bacteria or viruses, they do not really cause the disease or increase your chance of developing its symptoms.
In order to create immunity, vaccines act in conjunction with your body's natural defenses. Your immune system reacts when you receive a vaccination.
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Humans even though i dont believe in evolution but that is the scientific answer
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome.
We can control pollution by
(i) By Making workplaces no-smoking zones and banning cigarettes advertising.
(ii) By Strictly penalties for consumers and firms who break the regulations.
(iii) By Setting minimum standards in the workplace for health and safety.
Answer:
Enzymes can only be used once
Explanation:
Enzymes are there forever
