Answer: The heliocentric model was generally rejected by the ancient philosophers for three main reasons: If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. ... Hence, the Earth must be stationary.
Explanation:
Hm Well, Hematopoiesis is defined as the process of blood cell production, multiplication and specialization in the bone marrow.
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.
Rocks are abiotic
(Soil?) is made of both abiotic and biotic materials
Sea shells are biotic