what’s the question haha u want me to explain it?
True, Eukarya is the only domain with multicellular organisms
Answer:
Melatonin
Explanation: melatonin in the body is a natural hormones that helps in the regulations or coordination of the cycle of our sleeping and waking. It is found in the pineal glad and it is more active during night time than day time.
Teenagers most especially has different time of sleep they sleep mostly late during weekends and sleep early during weekdays.our body needs sleep so as to function properly and most times our body is also adapt to some times that we sleep. Melatonin is usually release in the body gradually around 9pm in the evening where it initiate sleep but in some people, it is when the hormones is release in an increase dose that they can fall asleep thereby shifting the time to about 11pm or 12pm before the person can fall asleep for quick sleep, melatonin supplement are used.
Down Syndrome is caused by a chromosomal - the trisomy of chromosome 21. The non-disjunction of the homologous chromosomes during meiosis causes some of the daughter cell to have two sets of chromosome 21. During fertilization, the resulting zygote, therefore, will have three chromosomes 21. The symptoms of this genetic disorder are; intellectual disability and stunted growth.
