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Freshwater Ecosystems - Coggle Diagram
Freshwater Ecosystems
Lobe-finned fish
Amphibians
Moved to land
pectoral and pelvic fin bones became larger to be able to bear weight
Lungs became larger and more complex
Two chamber heart to three chamber heart
Changes to inner ear for better hearing for airborne sounds
Eyelids
Planarians
Body fluid has a higher solute concentration
Takes in water by osmosis
System of tubes to regulate internal water levels
Leeches
Saliva prevents blood clotting = easier to feed
Ray-finned Fishes
Swim Bladder
Freshwater turtles
Shells to protect internal organs
Annelids
Sludge worms
Large abundance of hemoglobin = adaption to lower oxygen concentration