Describe 3 ways in which the organs of the circulatory system and respiratory system are protected

1. The entire skeletal system protects internal organs.

2. These organs are furthermore protected by a body's immune system so that these internal organs are not damaged by viral ane bacterial infections.

3. The nervous system protects these other systems by allowing pain to circulate throughout the body when they are not working correctly.

In the air and in the lower fre ah water

Writing, you can revisit previous parts of the lesson by returning to the course map. be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity