In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Q: Question: The term that includes the changes of the endometrium during pregnancy is: 
 Options:  <0> Hatching. <1> Apposition. <2> Accession. <3> Invasion. <4> Decidualization.

A: biology
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Q: Question: The mitochondrial genome: 
 Options:  <0> It is circular. <1> It is single-strand. <2> It encodes all mitochondrial proteins. <3> It is part of the nuclear DNA. <4> None of the above.

A: chemistry
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Q: Question: What type of ploidy defines an individual 2n2 ?: 
 Options:  <0> Double monosomy. <1> Tetrasomy <2> Trisomy <3> Nulisomy <4> Triploidy

A:
biology
****