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Using such terms as altricial and birth canal, explain how normal human childbirth represents a design compromise.
Partial Pressure
The pressure exerted by a single type of gas in a mixture of gases, often used in calculations involving gas laws and respiration.
Hemoglobin
Located in red blood cells, this compound is tasked with the transfer of oxygen from the lungs to the body's tissues and the retrieval of carbon dioxide, taking it back to the lungs.
Hemocyanin
A copper-containing protein found in the blood of some invertebrates, serving a similar oxygen-transport function as hemoglobin in vertebrates.
Iron-Porphyrin
A complex organic compound that forms the core of heme, enabling oxygen transport and storage in hemoglobin and myoglobin.
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