A healthy activity enchaging is biking to school
Answer:
1 b, 2 b, 3 b , 4 d , 5 c, 6 d, 7 a, 8 d, 9 d,
Explanation:
1 b, 2 b, 3 b , 4 d , 5 c, 6 d, 7 a, 8 d, 9 d,
Population education is a recent innovation and is a subject to various misinterpretations and misunderstandings.
The first line of defense of the immune system includes mechanical barriers that prevent organisms from the body. The second line of defense includes processes that help remove or neutralize organisms that have penetrated mechanical barriers. The third line of defense is a complex defense that recognizes and reacts to specific organisms.
It can increase the heart rate up to three hours
hope this helps
