Examlex
Consider the sources of variation in traits among individuals of a species.Which of those can the member of the species control and which can they not control?
Hypothalamus
A region of the brain below the thalamus, coordinating both the autonomic nervous system and the activity of the pituitary, controlling body temperature, hunger, thirst, and other processes that regulate body equilibrium.
Hunger Signals
Physiological cues sent by the body to indicate the need for food intake, involving hormones, the central nervous system, and other bodily mechanisms.
Satiety Signals
Internal biological signals sent by the body to indicate fullness and control food intake.
Neurons
Specialized cells in the nervous system that transmit information to other nerve cells, muscle, or gland cells, through electrical and chemical signals.
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