To Determine the Age of Fairly Recent Fossils and Organic

question 30

Multiple Choice

To determine the age of fairly recent fossils and organic artifacts,it is possible to analyze the amounts of the isotopes ¹⁴C and ¹⁴N,because over time the ¹⁴C-which originated in the atmosphere-breaks down into ¹⁴N through a process known as beta decay.What net change occurred for this to happen?

• A)The ¹⁴C lost an electron.
• B)The ¹⁴C gained an electron.
• C)The ¹⁴C lost a proton.
• D)The ¹⁴C gained a proton.
• E)The ¹⁴C gained a neutron.

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Definitions:

Addiction

A psychological and physical inability to stop consuming a chemical, drug, activity, or substance, even though it is causing psychological and physical harm.

Amygdala

A part of the brain's limbic system involved in emotion regulation, fear processing, and the formation of emotional memories.

Hypothalamus

A region of the brain responsible for the regulation of certain metabolic processes and other activities, including temperature control, hunger, and circadian rhythms.

Autonomic Subdivision

A part of the nervous system that controls involuntary bodily functions, such as heart rate, digestion, and respiratory rate.