Scratchpad
A woman with heterozygous type A blood marries a man with type AB blood. Their children could have which of
the following blood types? (Select all that apply).
| А) туре А
B Type B
с тype AB
Type o

not sure if this is what you'r looking for eubacteria and archaebacteria

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.