Examlex
What is the functional significance of brain regions that lack a blood-brain barrier? Give an example.
Mammary Glands
Specialized organs in mammals that produce milk to nourish newborn offspring.
Constant Internal Temperature
The maintenance of a steady body temperature independent of the environment.
Mammals
Warm-blooded vertebrates characterized by the presence of hair or fur, secretion of milk by females for the nourishment of the young, and typically the birth of live young.
One-way Air Flow
A respiratory adaptation in some animals, such as birds, allowing air to pass through lungs in a single direction for more efficient gas exchange.
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