The rib cage is known for enclosing and protecting the thoracic cavity. In the thoracic cavity, the heart and lungs are present. Hence, the rib cage protects the heart.
B I believe would be your answer
Answer:
False
Disease in the circulatory would affect other organ system
Answer: They function as individual organisms
Explanation: Prokaryotes are single celled organisms and therefore do not have a true nucleus and structured organelles. However, they can feed on atmospheric gasses and decompositions which is one of the characteristics of an organism.
