When two excitatory postsynaptic potentials (EPSPs) occur at a single synapse so rapidly in succession that the postsynaptic neuron's membrane potential has not returned to the resting potential before the second EPSP arrives, the EPSPs add together producing ________.

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#Question id: 8892

#Unit 9. Diversity of Life Forms

Which of the following correctly characterizes the phylum Rotifera?

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#Question id: 8894

#Unit 9. Diversity of Life Forms

Which of the following is a shared characteristic of all chordates?

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#Question id: 8895

#Unit 9. Diversity of Life Forms

What is one characteristic that separates chordates from all other animals?

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#Question id: 8896

#Unit 9. Diversity of Life Forms

Chordate pharyngeal slits appear to have functioned first as

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#Question id: 8897

#Unit 9. Diversity of Life Forms

Which of the following statements would be least acceptable to most zoologists?

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#Question id: 8898

#Unit 9. Diversity of Life Forms

Which extant chordates are postulated to be most like the earliest chordates in appearance?