Answer:An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence.
Explanation:
<span>d. All of the above
These behaviors;
Spreading wings
Flattening feathers
panting
are all evolutionary process to maintain body temperature. Birds are warm-blooded animals. Also known as </span><span>homeotherms, which is defined as having the constant body temperature. This is a vital function for the survival of the specie.</span><span>
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78% of the atmosphere is composed of nitrogen
Well , overtime it evolutes itself and of gravity pushing down on it making it spread out vertically?
The windpipe is the trachea