Question

zika virus can enter the brains of mice in the womb to stunt development, the first animal tests show. source: bbc in this sentence, womb means: the study of heredity and variation in organisms a workplace for the conduct of scientific research the blood flowing through the circulatory system a hollow muscular organ in which a developing fetus grows

Explanation:

The word "womb" refers to the organ where a fetus develops. The first option is about genetics, the second is a research - lab, the third is about blood circulation. Only the fourth option correctly defines "womb".

Answer:

D. a hollow muscular organ in which a developing fetus grows