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S_A_V [24]
3 years ago
5

Match the feature with its description

Biology
1 answer:
Ray Of Light [21]3 years ago
8 0

<span>Features matched with its description 
A: stalactites      3: tubes with hollow centers 
B: stalagmites    2: tubes without hollow centers</span>

<span>C: speleology     1: cave science</span>

D: speleothems 4: cave features

<span>
</span>Speleology is shortly defined as the<span> scientific study of caves.</span> Speleothems are structures<span> formed in a cave by the deposits of minerals from water dripping from the fractures of the ceiling of the cave. Most common types are the stalactites and stalagmites. </span>

<span>Stalactites began as a ring of crystals which later becomes small tubes with a hollow center.</span><span> Stalagmites, on the other hand, are tubes formed without hollow centers. </span>

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if you were to watch an individual neurotransmitter molecule just after it was released what would happen to it
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Neurotransmitter leaves the presynaptic cell by exocytosis. It is released in the synaptic space, and moves to the postsynaptic membrane to meet its receptor. When binding occurs, it triggers a response in the new cell.

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Every neuron forms connections with another cell.  

When a presynaptic cell sends information, a neurotransmitter is released.  

After the exocytosis event, this chemical substance travels through the synaptic space forward to the other cell. Once there, it binds to its receptors in the postsynaptic membrane.  

When the joining occurs, the receptor acquires a channel shape. This change allows the ion transference that will make possible the modification of the action potential.  

This binding produces the excitatory postsynaptic potential -depolarization-.

A new action potential initiates in the postsynaptic cell and spreads to the rest of the membrane, depolarizing it.

If the communication between cells needs to stop, the neurotransmitter will be taken out from the synaptic space <em>instead of binding to its receptor. </em>

There are two mechanisms by which the neurotransmitter can be eliminated: by deactivation or reuptake.  

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Related link: brainly.com/question/14693514?referrer=searchResults

                     

6 0
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Biology question 3
mamaluj [8]
The muscle cells divide through Mitosis, a cellular division comprised of several other substeps. 

The final step of the cell division is the cytokinesis by which two new cells are formed from cell with a multiple number of nucleus after the replication process. This steps follow the telophase. 
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3 years ago
When two or more simple machines are combined they form a(n) _____.
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It is not c or d. I think it is a. 
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Help please!!!!<br> I will mark you brainliest if i get the correct answer<br> I need ASAP!!!!
yuradex [85]

Answer: c is the answer

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Answer:

An active site

Explanation:

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