Question

Name the specific parts of system involved.

1. Lifting a pail of water.
2. These are parts of skeletal system use to cover a distance.
3. It carries messages to the brain and goes back to the muscles for action.
4. It prevents the backflow of the blood during the circulation process.
5. It is the main passegeway into the lungs.

Answer 1

1. water lifting device
2. Promitives
3. nerves
4. valves
5. windpipe (trachea)

BTS AND EXO

Answer 2

System and parts

Explanation:

1. Lifting a pail of water : a pail of water can be lifted in many ways, such as manually, using pumps or any other water lifting device. One very common way is lifting a bucket full of water using pulley, because it helps in changing the direction of force applied which makes it easy to move.
2. These are parts of skeletal system use to cover a distance:  Cartilage are the smooth flexible substance which helps bones in moving without pain, as pain is caused due to friction.
3. It carries messages to the brain and goes back to the muscles for action: Motor Neurons carry the message via spinal cord, it tells muscle fiber to contract and move.
4. It prevents the backflow of the blood during the circulation process: The pulmonary semilunar valves prevent the backflow of blood from the pulmonary trunk, back into the right ventricle contracts. When the right ventricle is full, the tricuspid valve closes and keeps blood from flowing backward into the right atrium when the ventricle contracts .
5. It is the main passageway into the lungs: The trachea (windpipe) is the passage leading from pharynx to the lungs.