Examlex
Write the word or phrase that best completes each statement or answers the question.
-Assume that the half-life of Carbon-14 is 5700 years. Find the age (to the nearest year) of a wooden axe in
which the amount of Carbon-14 is 30% of what it originally had.
Hormones
Regulatory substances produced in organisms to stimulate specific cells or tissues into action.
Endocrine Gland
A gland that secretes hormones directly into the bloodstream to regulate various body functions.
Hypothalamus
A region of the brain that regulates various bodily functions, including temperature, thirst, hunger, and the release of hormones from the pituitary gland.
Calcium Levels
The concentration of calcium ions in a particular system, important in biological contexts for bone formation and neuromuscular function.
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