What type of answer are you looking for? DNA? Or inheritance? Genes?
Answer:
1.) Why does menstruation begin?
A.) Period happens because of changes in hormones in the body.
2.) How long does the menstrual cycle usually last?
A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days
<u>-TheUnknownScientist</u>
Answer:
10 different species are shown in the picture
2 different genus groups are classified on this picture
Hope this helps
<span> One pair of sex chromosomes and 22 pairs of autosomes
that should be right. please let me know if it is
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