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a muscle important to breathing. it is a thin layer of muscle which separates the chest chamber from the abdomen
is a cartilage fish which has an endoskeleton made of cartilage and breathes under water with gills
the tail of a tadpole:
is gradually broken down and used as nourishment which it develops into a frog. It doesn't just fall off.
are turtles born with gills?
no. A turtle is a reptile and looks like a tiny adult turtle when it hatches from the egg.
a term which describes man's study of living things to discover better solutions for human problems.
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