A person who smokes 1.5 packes daily gets 300 hits of nicotine to the brain each day. One cigarette has an average 10 nicotine in it. If one and a half pack has 30 sticks of cigarette. Nicotine is very very dangerous to a man's health. IT causes several types of caner. But the answer to your question is letter C - 300.
Explanation:
our chemical barriers protect almost every infection we can get in our body
Answer: B
Explanation: Aphthous ulcers are white, round, or oval lesions surrounded by a red halo that appear on the buccal mucosa.
Answer:
1. The retina contains three kinds of colour receptors
Explanation:
Young-Helmholtz theory color vision says human can perceive colour due to the presence of colour receptors in the retina that receives colour in various wavelengths
Answer:
1. Keeping surrounding areas clean
2. Clean open wounds to prevent infection
3. Quarantine.
4. Take vaccines
5. Dispose of external fluids like spittle, etc.
Explanation:
What is Disease? This is the presence of a foreign body in the system of a living thing which causes a change in the functioning of the body and causes illness.
Hence, the use of quarantine makes sure an infected person cannot transmit to a non infected person
