Question

seup
5.
White Blood Cells
6.
Platelets
1.
Answer in short.
1.
2
.
Why is blood red in colour?
Name the parts of the circulatory system.
3. What are the functions of heart?
4. Why is oxygen important for us?
5. What do you understand by cardio exercises?
Give long answers.
1. Mention four ways to keep our heart healthy and stror
How does exercising help our heart?
3. How is deep breathing helpful to our body?
2.​

Answer 1

Answer:

Blood is red in colour because of the presence of haemoglobin

Answer 2

Answer:

blood is red in colour within the hemoglobin m akes it red in colour