Which statement about brain cell growth is accurate?

The statement that we are born with 100 billion brain cells and do not grow anymore reflects the understanding that while humans do have a vast number of neurons at birth, this figure doesn't accurately describe ongoing brain cell development. In reality, the number of brain cells can change throughout a person's life, influenced by various factors such as learning, environment, and neurological health.

Research has shown that neurogenesis, the process of forming new neurons, occurs in specific parts of the brain, such as the hippocampus, even in adulthood. This contradicts the idea implied by the chosen answer, which suggests that brain cell development is a fixed attribute established at birth. Therefore, while the brain's structure is largely developed early in life, it remains malleable, allowing for the growth and regeneration of brain cells over time, especially in response to new experiences or learning endeavors.

Understanding that our brain continues to change and adapt throughout life furthers the appreciation for lifelong learning and development.