Approximately How Old Is a Fossil That Contains 3

question 73

Multiple Choice

Approximately how old is a fossil that contains 3.13% of its original carbon-14? The half-life of carbon-14 is 5730 years.

• A)2870 years
• B)5730 years
• C)11,500 years
• D)22,900 years
• E)28,700 years

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Definitions:

Plasticity

The brain's ability to change and adapt as a result of experience or injury.

Surgical Removal

The process of excising or taking out tissue, an organ, or a tumor from the body during an operation.

Broca's Area

A region in the frontal lobe of the dominant hemisphere of the brain with functions linked to speech production.

Cerebral Cortex

The outer layer of neural tissue of the cerebrum of the brain, playing a key role in memory, attention, perception, cognition, awareness, thought, language, and consciousness.