A definição de pressão arterial é: 2 pontos
A quantidade de batimentos que o coração executa por minuto.
A força que o sangue exerce nas paredes dos vasos sanguíneos apos ser bombeado pelo coração.
A força com que o sangue retorna do corpo ao coração vencendo a força de gravidade.
O fechamento e abertura das valvas do coração com a passagem de sangue.

Mg is used to measure mass

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait. 

Aplant cell has vacuoles and a cell wall

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the  pharynx, the  larynx, enters the  trachea, moves through the  bronchi  andbronchioles  till the alveoli.