The answer would be D. All of the above because A, B and C are also true.
Answer:
A)Tetrapods were no longer tied to the water for reproduction. B) Tetrapods could now function with just lungs.
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There are three physical types of media, theses are solid, liquid and semi-solid.
In liquid media, growth occur throughout the media. In solid media, there are firm surfaces for bacteria to form discreet colonies. This type of media usually contain 1-5% agar. For semi-solid media, this type of media has soft constituency at room temperature and does not flow freely.
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