Investments can help a business increase productivity by A. making it possible for the business to ignore opportunity cost
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B. eliminating the need for any input when creating products,
C. offering the business more efficient ways to make goods.
D. creating goods outside the production possibilities curve,

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