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Katyanochek1 [597]
2 years ago
14

Please help thank you

Biology
2 answers:
Svetach [21]2 years ago
6 0
When a nerve impulse reaches the end of an axon, the axon terminal released ACh into the synaptic cleft. 2. ACh diffuses across the cleft and attaches to the ACh receptors on the sarcolemma of the muscle fiber. 3. ACh binding triggers electrical events that ultimately generate an action potential.
zalisa [80]2 years ago
6 0
A. the chemical signal is released.
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Answer:

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Explanation:

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navik [9.2K]

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Leto [7]

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The awnser is B

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5 0
1 year ago
Are bivalves protostomes or deuterostomes?
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Bivalves are protostomes, as they belong the to phyla Protostomia. They are freshwater/marine molluscs, whose body is covered by a protecting shell. They do not have a head, and some of their examples include oysters, clams, mussels etc.  
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