The Reason Their Exoskeletons Cannot Protect the Corals from Sea

question 28

Multiple Choice

The reason their exoskeletons cannot protect the corals from sea stars is that the sea star

• A) is immune to the toxin of the nematocysts.
• B) thorns are sharp and toxic.
• C) tubefeet act as tiny syringes that suck the corals out of their exoskeletons.
• D) stomach can be everted, and can release digestive juices directly onto the corals.

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