<span>The repolarization of cardiac muscle is due to closure of calcium (Ca) channels and potassium (K) exiting the cell when additional voltage gated K channels open.
Due to these changes within the heart, repolarization has to happen. This process refers to returning the cardiac muscle to its resting state, and the opposite process is depolarization. 
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Answer:
To describe a new specie, it has to be carefully examined in order to determinate that it doesn´t belong to an another specie already described. 
Once it has been determinate the novelty of the specie, the researchers write a formal description of it, takes pictures and name it with the new scientific name. Then, the researchers refer it to a scientific magazine.   The editor of the publication will comunicate the new discovery to an experts in that gender.   If the experts agreed, and the publication accept the study, the specimen converts to a new specie.   The process is long and could take years betwen the inicial discovery and the formal acceptation of the new specie
Explanation:
 
        
             
        
        
        
Steam has the most energy because a particle has the most energy when it contains high internal energy. (Has the larger temperature) 
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Answer:
A.
Explanation:
The correct sequencing of DNA nucleotides to match A, T, T, G, C is T, A, A, C, G because the nucleotide matches are: Adenine-Thymine, and Guanine-Cytosine. This works both ways, A-T or T-A, and G-C or C-G. The correct sequence therefore is A.
 
        
             
        
        
        
According to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.
<h3>What is the
 colon?</h3>
It refers to the portion of the large intestine, whose function is to convert digested food waste (chyme).
It can be divided into four sections:
- Ascending, it begins at the junction with the tenuous intestine and extends down the right side of the abdomen.
- Transverse, which crosses the abdomen from the right side to the left.
Therefore, we can conclude that according to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.
Learn more about The colon here: brainly.com/question/14788209
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