Within the Past Two Decades, Researchers Have Found That Parts

question 19

Essay

Within the past two decades, researchers have found that parts of the brain grow and gain neurons during adulthood. In fact, not only do dendrites form and pathways strengthen; new neurons are born (neurogenesis). However, for some aging adults, severe brain loss occurs before age 65. Summarize four causes of early and pronounced brain loss.

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Definitions:

Tetrahedral

Tetrahedral refers to a molecular shape where a central atom is surrounded by four other atoms at the corners of a tetrahedron.

Equivalent Atoms

Equivalent atoms are atoms in a molecule that have identical bonding arrangements and environment, making them indistinguishable in chemical reactions.

Acetylene

A colorless, flammable gas used as a fuel and a building block for chemical synthesis.

Molecular Shape

The three-dimensional arrangement of atoms within a molecule, determining its reactivity, polarity, and physical properties.