题目内容
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提问人：网友l******8
发布时间：2022年3月26日 00:00
[单项选择题]
Hydrothermal vents along the mid-ocean ridges host ephemeral ecosystems of diverse fauna, inclu... following purposes over the course of its life-cycle EXCEPT________.（）
A．They assist in the orientation process by helping the crab navigate toward post-larval settlements.
B．They assist the crabs visually by permitting imaging in the light-saturated upper oceanic depths.
C．They help the crabs navigate by providing thermal and chemical senses to the adult crab near post-larval settlements.
D．They increase the crabs’’ flexibility by allowing the crab to adapt to two different environments with different lighting conditions.
E．They permit the crabs to achieve increased sensitivity to the location of underwater thermal vents.
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