Answer:
Our body cells require oxygen to release energy.
Explanation:
The oxygen that we take in during respiration is used to break down the food we eat to release energy from it. When we breathe in oxygen, it diffuses into blood from the lung, where it is transported by red blood cells to the entire body to be used to produce energy.
The purpose of DNA replication is to produce two identical copies of a DNA molecule. This is essential for cell division during growth or repair of damaged tissues. DNA replication ensures that each new cell receives its own copy of the DNA.
Bird and egg drop experiment are similar in nature. When the birds fly and have wings they slow down when they are landing. Relating to human activities, egg drop is also like skydiving. The parachute is blocking the air and it slows down when dropping.
3 to 15 years old children are recommended for immunization and vaccination.
