Biologists suggest that platypus is more primitive than koala.
Explain Why.
Biology...
2006-12-03 12:49 am
回答 (1)
2006-12-03 6:38 am
✔ 最佳答案
platypus lay eggs, which is more similar to the primitive mammalsalso, the milk glands of a platypus is less developed than a koala, although the latter is not so well developed either compared to the most mammals we see today
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