Science!

what exacerbated the great leap forward famine in china in the late 1950s?

a. quota systems

b. a shift from individual to collective farms

c. civil war

d. an increased proportion of wealthy citizens

What best explains the inability for life to exist in earth early atmosphere

Witch theory suggests all living things are made up of cell or cells

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed