I'm not sure, but I think it would be mud.
Answer:
a
Explanation:
this is because it is sharing in the food that is meant for the organism
Answer:
A. Food was turned into blood, and when it reached the heart it was mixed with air to make 'spirit.'
Explanation:
Galen believed a theory of pneuma. That is, he believed that blood contains "vital spirits" released into it by the brain.