Ctenophores,also known as sea wasps,are responsible for many fatal stings in tropical waters.
Multiple Choice Questions
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Q14: The class of cnidarians with the most
Q15: The anthozoans include the marine sea anemones
Q16: A common characteristic of cnidarians is
A)an osculum.
B)dimorphism
Q17: Cnidarians are widespread in marine habitats,but there
Q18: The most typical habitat of cnidarians is
Q20: Some fish eat cnidarians,and then use the
Q21: The nematocyst is enclosed within the cell
Q22: The morphological type adapted to a sedentary
Q23: Zooxanthelae
A)fix carbon dioxide and photosynthesize in a
Q24: The structure of the nervous system in
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