Which of the following is not a way to prevent the exposition of pathogens?

• Daily shower

• Cover-up the mouth before cough

• Clean food before consuming it

• Cleaning shoes

The lymphatic system could be considered a secondary circulatory system.

• True

• False

Lymph can be moved through the heart.

• True

• False

Lymph contains water, white and red blood cells.

• True

• False

Lymphatic nodes are in charge of producing white blood cells that attack strange agents.

• True

• False

Draw appromaxitely the lymphatic system and remember to name the most important organs on it.

Mention words that involves the function of some organs in the immune system.

_____________ allows the oxygen transport from lungs to all the body tissue.

___________ protects the organisms from infections.

___________ helps with blood coagulation.