13.
(A) tissues
(B) effectors
(C) senses
(D) insights

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統計： A(8), B(14), C(66), D(24), E(0) #614162

詳解 (共 2 筆)

#944951
caecilian 【動】蚓螈
burrowing  穴居
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#944948
Amphibian senses(感官) are well developed. Frogs and toads have excellent sight and depend on their eyes to find food. Salamanders have good eyes and also keen smell. When they hunt for food, they use both sight and smell. For the burrowing life of caecilian, good eyesight is not a necessity. They hunt mainly by smell. They have two tentacles, or feelers, near the mouth.

 
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