5. Which of these is an example of a molecule? A. a small nugget of pure gold.

B. a small drop of sugar water.

C. the smallest grain of salt in a salt shaker.

D. two oxygen atoms joined to a carbon atoms.

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Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science

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