Answer:
C. 30 -40
Explanation:
90% edge
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Explanation:
The 47,XXY karyotype of Klinefelter syndrome spontaneously arises when paired X chromosomes fail to separate (nondisjunction in stage I or II of meiosis, during oogenesis or spermatogenesis
The cerebral cortex, the largest part of the brain, is the wrinkly gray outer covering of the cerebrum.
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I think is D Carbon dioxide
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The CNS involves the brain and spinal cord and the PNS involves the body nerves.