Answer:
does not yet understand conservation
Explanation:
The concept of conservation was proposed by psychologist Jean Piaget and the concept emphasizes that an infant recognizes that altering the shape of a material or object does not alter its number, total volume or mass. His hypothesis indicates that this capacity is not present in children between the ages of 2 and 7 but comes later at the concrete operational stage between the ages of 7 and 11. As per the question, Colin does not understand that pieces of sandwich would not decrease its size and it reflects that he lacks the understanding of conservation.
mitochondria (is the powerhouse of the cell)
A market doesn't need self-interest .