Leopard frogs have no teeth but carnivore frog's have teeth.
Answer:
where is the picture,...
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Some samples are transparent, or very difficult to see, therefore, they are stained in order to be seen more clearly and easier to work with.
During eye surgery, the clear layer of the eye is stained to be easily extracted, if it was clear then the surgeon might cut the eye instead of just the layer.
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a. respiration of living organisms
D. absorption of CO2 from the atmosphere by ocean water
Hardy and Weinberg’s work determining how allele frequency changes (C)
