1. what part of a nerve cell insulates nd speeds up nerve impulses
- myelin sheath
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Other questions in this quiz
2. how do the electrical impulses cross a synapse
- they don't
- they don't need to cross synapses.
- make a chain
3. what kind of variation is hand width
4. if you had parents who were both "Tt", how many of the 3 children will be TT?
5. how many animal kingdoms are there?