The pedicellaria presumably protects the aboral surface of the asteroid from the

Question

The pedicellaria presumably protects the aboral surface of the asteroid from the colonization by the larva of other marine creatures. What kind of animal might have larva which would pose this threat. Give examples.

Frogs and toads generally exhibit little or no parental investment beyond making gametes and mating. What exception did you discover in reading your texts?

A number of amphibia survive in the desert environment ( some salamanders and spade-foot toads) but none have mastered the marine environment. Why not?

One scene in the movie Jurassic park shows a herd ( flock) of ornithischians (bird-hipped dinosaurs) by being pursued by the T. rex. Why would such a recreation of Jurassic wildlife not contain real birds?

If you are walking near a pond this spring you may encounter one of our local great blue herons. if you startle the bird, it will probably defecate as it takes flight. if you are unfortunate enough to be directly under the bird you will recognize that the volume of material ejected is consedereabl., often 500 ml or more. Aside from its obvious dislike of college students, why does the GBH do this?

Explanation / Answer

The pedicellaria presumably protects the aboral surface of the asteroid from the

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