Karyotyping is used to:
study chromosomes.
treat Down syndrome.
repair chromosomes.
diagnose genetic diseases.
Carbon dioxide from the yeast comes from a process called fermentation. Fermentation is a cellular respiration process in cells that happens when oxygen is not present. If oxygen is present, the process is called aerobic respiration.
The U.S. has one of the highest, if not, the highest obesity rate in the world.
I believe the answer must be B when considering the options.
I hope this helps, have a great day, and God Bless!
Brainliest is always appreciated :)