Examlex
Which of the following is a leading cause of death in middle adulthood?
Pyothorax
Accumulation of pus in the pleural cavity caused by infection, which can lead to compromised lung function and requires medical intervention.
Metathorax
The third and last of the three segments in the thorax of an insect, carrying the second pair of wings and the second pair of legs.
Water Vascular System
A hydraulic system used by echinoderms, like starfish, for locomotion, food and water transportation, and waste removal.
Asexual Fragmentation
A method of asexual reproduction where an organism breaks into fragments, each of which develops into a new organism.
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