Answer:
Hepatitis A infection can be prevented by getting vaccine or immune globulin soon after coming into contact with the virus. Persons who have recently been exposed to HAV should get immune globulin or vaccine as soon as possible, but not more than 2 weeks after the last exposure.
Explanation:
You can take steps to reduce the risk of passing hepatitis A to others.
Avoid sexual activity. Avoid all sexual activity if you have hepatitis A.
Wash your hands thoroughly after using the toilet and changing diapers.
Don't prepare food for others while you're actively infected.
Answer: Life would cease to exist.
Explanation:
The carbon elements is one of the most important elements in the compound that make up living organisms. It is found: in the remains of living organisms; as fossil fuels such as coal, coke and natural gas; as inorganic salts such as carbonates; in water bodies and as gas carbondioxide which makes up 0.03% of air.
Carbon is continuously being circulated in the atmosphere through a process called the CARBON CYCLE. This involves the removal and addition of carbon to the carbondioxide in the atmosphere.
Life would indeed cease to exist if this carbon cycle stops due to the importance of carbon to functioning of living organisms. Important processes which bring about the recycling of carbon between living ( biotic) and non living (abiotic) components of an ecosystem are:
--> photosynthesis: the process used by green plants to remove carbon through carbondioxide from the atmosphere for manufacturing of their food.
--> respiration: animals respire to break down sugar leading to liberation of carbondioxide and water as wastes
--> and decay: decomposers feeds on remains and waste to bring about decay, thus complex carbon compounds are broken down to set free carbondioxide which returns to the atmosphere.
All the above processes are carried out by living organisms to maintain a functioning ecosystem by enabling a linear flow of energy through it.
Answer:
Mutations in genetic code occurs when DNA is being duplicated.Any changes in the base pairs leads to mutations by trasition or transversion. Change in amino acid leads to change in sequence and thus, mutation. This si carried on to new generation, if it takes place in germ cells.
Water is the compound. Iodine and calcium are elements, and air is a mixture
Correct answer: A). Root
The part of the word that can not be broken down is called root word. In the word claustrophobic ''phob'' is the root word. It can not be suffix as a suffix are added after the root word. It cannot be prefixed as it is added before the root word. Here the prefix would be ''claustro'' and suffix would be ''ic''. It cannot be affixed as it contains both suffix and prefix.
Hence, the correct answer would be option A.
