Answer: C.
Explanation: The more intense the activity, the faster your heart will beat. Therefore, monitoring your heart rate during exercise can be an excellent way to monitor exercise intensity.
B. A helmet is the most reasonable answer
Answer:
Nervous
Explanation:
The nervous system is the part of an animal's body that coordinates its behavior and transmits signals between different body areas. In vertebrates it consists of two main parts, called the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord.
Answer:
If someone collapses in front of you, or you find someone unconscious, then the first thing to remember is not to panic and to keep safe yourself. 1) Check for any danger around you, and try to rouse the casualty by giving their shoulders a hard shake and shouting 'can you hear me
Explanation:
