Examlex
The valence shell of an atom determines how many bonds it can form.
Generalized Anxiety
A disorder characterized by persistent and excessive worry about a number of different things, often disproportionate to the actual source of worry.
Neuroanatomy
The branch of anatomy that studies the structure and organization of the nervous system.
Neurotransmitters
Chemical substances that transmit signals across a synapse from one neuron to another in the brain.
Q11: Describe how a feedback system maintains homeostasis.
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Q36: Hydrogen bonds hold the hydrogen and oxygen
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