Generally speaking if time is on the x-axis and the thing that’s changing is on the y-axis, a steep curve would indicate a rapid rate of change.
<span>What is the hematocrit value for the healthy male living at sea level in Boston? The Answer is </span>48 for males and 55 for a female.
Death rate is lower than birth rate, and immigration equals emigration would lead to an increasing population.
Option D is the correct answer
Answer:
(2) exchange food, oxygen, and waste between
mother and fetus
Explanation:
In most mammals like humans, the fetus produced as a result of the fertilization of the sperm and egg, develops in the uterus or womb of the female. However, this developing fetus cannot yet fend for what it requires for survival and is still dependent on the mother e.g nutrients, oxygen etc. How do this substances get to the fetus? Here comes the role of the PLACENTA.
Placenta is an organ in the uterus that serves as a connection between the mother and the fetus in her womb. The placenta enables the mother to pass digested nutrients to the fetus and exchange gases (oxygen and Carbondioxide) between them via the umbilical cord. The placenta also enables the mother remove waste produced by the fetus into her bloodstream.
Coordinates muscles controlling breathing ..
Hope it helps.
