Answer:
The placenta is the temporary association of fetus and maternal tissue. It is meant for nutrition and transport of different substances.
Explanation:
The placenta is a temporary association of fetal and maternal tissues. The placenta is formed from the trophoblast of the blastula. These trophoblasts form chorionic villi which later forms the placenta. The chorion and allantois also take part in the formation of the placenta. Hence, the human placenta is known as the chorioallantoic placenta. The process of formation of the placenta is known as placentation.
The placenta has several functions but the major function is to provide nutrition to the fetus. The developing fetus gets nutrition from the mother's body by the placenta. The placenta provided with blood vessels which help in the transportation of different substances. It also helps in gas exchange between the mother and baby. Thus it plays a vital role in fetal respiration. The metabolic wastes diffuse through the placenta. Placenta also stores fat, glycogen, which participates in protein metabolism.
Answer:
more force needed would be fulcrum at 12 with nickle at 1 the one closest to the nickle would go the furthest
Answer:
east to west
Explanation:
The stars and moon are the celestial bodies which are located at distant.
The distance of stars vary but moon and sun remain same. As our Earth rotates at its own axis, other celestial bdies seem to move.
As Earth spins from west to east, the stars and moon seems to move from east to west direction at night and same with Sun, it also seem to move from east to west.
Hence, the correct option is east to west.
Well it surely isn't nuclear, or electrical. It's not radiant either.. So the only answer is chemical.
