Answer:
A 2008 study suggests that sympatric speciation has occurred in Tennessee cave salamanders.
Explanation:
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1. Trachea itself is not considered a complete organ. It is a part of the breathing system and the only airway to the lungs.
2.Yes rigid organs.
3. Rigid organs constitute part of the endoskeleton of vertebrates.
Answer:
Thrives in dry conditions
Explanation:
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Answer: Golden jackals, Tree frogs etc.
Explanation: Tree frogs use plants as protection. Golden jackals, once they have been expelled from a pack, will trail a tiger to feed on the remains of its kills. Goby fish live on other sea animals, changing color to blend in with the host, thus gaining protection from predators