14 Oct 2024
Credit: Pixabay
A simple, flat marine animal that absorbs oxygen through its entire body surface.
Credit: Google
Parasitic flatworms living inside hosts, relying on anaerobic respiration (no need for oxygen).
Credit: Google
Lack a respiratory system; oxygen diffuses through their body membranes.
Credit: Google
Pump water through their porous bodies, absorbing oxygen directly from the water without specialized organs.
Credit: Google
These tiny freshwater animals take in oxygen through diffusion across their body surface.
Credit: Google
Use diffusion for gas exchange and live symbiotically with algae that photosynthesize, indirectly providing oxygen.
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A parasite of fish that does not use oxygen at all, surviving via anaerobic pathways.
Credit: Google
Oxygen diffuses directly through their skin, as they lack lungs or gills.
Credit: Google
Tiny animals found in oxygen-free deep-sea sediments, capable of living without oxygen through anaerobic metabolism.
Credit: Google
Some species can survive in anoxic conditions by entering a state of dormancy.
Credit: Google