Answer:
In the entire solar system, the environment of planet earth is unique due to the presence of the atmosphere.
It is responsible for providing carbon dioxide and oxygen which are essential for the presence of life on earth.
Secondly, it helps in keeping the earth warm through the greenhouse effect.
It prevents the entry of harmful radiations of the sun into the atmosphere.
Because they will grow really long if you don't
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
What brought the most benefits to humanity was probably the discovery of DNA. The history of biology came to be from Egyptian methods of medicines and native traditions.
