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The oldest endospores to be revived and cultured to produce live bacteria are:
Hormones
Chemical messengers secreted by glands in the body that regulate physiology and behavior, including growth, metabolism, and reproductive processes.
Bloodstream
The flowing blood within the circulatory system of the body, carrying oxygen, nutrients, and waste products to and from the cells.
Synaptic Gaps
The tiny space between neurons across which neurotransmitters travel to transmit signals from one neuron to another.
Limbic System
Neural system (including the hippocampus, amygdala, and hypothalamus) located below the cerebral hemispheres; associated with emotions and drives.
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