Examlex
A typical cactus found in an American desert has a green,fleshy stem and leaves reduced to brown and/or white needles and/or fine hairs.Why are the leaves reduced,and where do you think photosynthesis takes place? Explain.
Parasympathetic Nervous System
A division of the autonomic nervous system responsible for rest and digestion, counterbalancing the sympathetic nervous system.
Autonomic Nervous System
The part of the nervous system that controls involuntary body functions, such as heart rate, digestion, and respiratory rate, operating automatically without conscious control.
Endocrine System
A network of glands in the body that produce and release hormones directly into the bloodstream to control many bodily functions, including growth, metabolism, and mood regulation.
Hypothalamus
A small but crucial part of the brain involved in numerous functions, including hormone regulation, temperature control, and hunger.
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