According to recent estimates provided by Professor Lara Rangel, there are approximately neurons in the adult human brain. A. 60 - 80 million. B. 60 - 80 billion. C. 80 - 120 million. D. 80 - 120 billion. E. 60 - 180 million. F. 60 - 180 billion.

D. 80 - 120 billion.

Explanation:

The brain is the control center of any animal. It controls every part of the animal's body function. According to Professor Lara Rangel, the range of neuron count in the adult brain is between 80 to 120 billion. In her article, she said that neurons can be lost as a result of sickness and other factors, which makes the number of neurons vary in the adult brain.

they all focused on themes about the inevitability of death.

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