This could be many things. It's common for young girls you have irregular periods but could also be a health problem. There is also a possibility of pregnancy if she is sexually active.
Infrastructure, because it's not a part of the environment, it's not a form of transportation, not a service either. Thus the only remaining answer is Infrastructure
Answer:
Exposure Time is Longer
Chemicals can cause serious incidents in the workplace
Answer:
B. Genotype of offspring
Explanation:
the Punnett Square is a square diagram used to predict the genotype of particular cross
Answer:
Light should be left on in the bathroom at night.
Explanation:
Genitourinary systems are organs of the reproductive and urinary systems, which are grouped together, because of their proximity, due to the common embryological developments, and the common pathways they share.
Therefore disorders of the organs of these systems are called Genitourinary disorders.They can be with without symptoms(asymptomatic), or with ranges of symptoms.They are caused by infectious diseases (OF bacterial and yeast) at trauma,and some congenital factors,
Frequent urination, sensation to empty the bladder is one of the symptoms of this disorder, thus bathroom light should be left on, for visibility,and for examination of these parts.