Answer:
B. False
Explanation:
No system of the body works in isolation. So, option (B) is correct.
The amount of ozone and particle concentrations in a given area are influenced by a variety of weather-related factors, therefore the weather can have a significant impact on air quality.
<h3>What influences the air's quality?</h3>
The quality of the air is influenced by a variety of climate-related elements, including temperatures, cloud cover, humidity, precipitation frequency and intensity, wind patterns, and others.
In India, more than 90% of people live in areas where the air quality is below WHO limits. The biggest sources of pollution are factories, coal-fired power plants, and automobiles.
Learn more about the quality of the air here:
brainly.com/question/858294
#SPJ1
Answer: Option D
Antigen is a given substance that stimulates a specific immune system.
Explanation:
Antigen is a substance that can stimulate an immune response by activating lymphocytes (white blood cells) which acts as body defence against infections. Antigen is divided into two which are,
1. Foreign antigen or heteroantigen which is a foreign substance that stimulates immune response.
2. Autoantigen self antigen is a substance in the body that stimulates immune response.
Answer:
RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene.
Explanation:
oof
