The Most Precise Method of Obtaining Estimates of the Absolute

question 2

Multiple Choice

The most precise method of obtaining estimates of the absolute ages of geological deposits is

• A)measure rates of sedimentary rock formation.
• B)measure the ratios of various radioactive isotopes in the deposits.
• C)apply the principle of superposition (younger deposits above older deposits).
• D)make salinity measurements in ocean sediment deposits.
• E)study the sequence of fossil types in the deposits.

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Definitions:

Neurogenesis

The process by which new neurons are formed in the brain, which occurs throughout a person's life, particularly in the hippocampus and olfactory bulb.

Myelination

The process of forming a myelin sheath around the nerve fibers to increase the speed at which information travels through the nervous system.

Synapses

The junctions between neurons where the transfer of information occurs through chemical and electrical signals.

Neural Development

The process of growth and change in the nervous system, including the brain's formation, maturation, and connectivity.