The term pharynx may also be used to describe a differentialed portion of the invertebrate.
        
             
        
        
        
Answer:
The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.
Explanation:
 
        
             
        
        
        
What is internal and external stimulus? What is an example of each?
Answer:
A internal is situated or existing in the interior of something Example:No country should interfere in another country's internal<span>
 affairsAnswer:
A external stimulus </span><span>
is a detectable change in the internal or </span>
external environment. Example: When a person sees a burger when hungry they s<span>
tomach starts to  growl</span>
 
        
        
        
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
<h3>What is RNA?</h3>
This is referred to as ribonucleic acid with its base adenine being paired with uracil.
The  mRNA strand which is known as messenger RNA is complementary to the DNA template strand and carries protein information from the DNA to cytoplasm for appropriate translation.
Read more about mRNA here brainly.com/question/12388408
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