A week after fertilization, a blastocyst attaches to the lining of the B. uterus.
A week after fertilization, a blastocyst attaches to the lining of the _.
A. ovaries
B. uterus
C. fallopian tubes
D. ovum
1 answer
A. ovaries
B. uterus
C. fallopian tubes
D. ovum
1 answer
A week after fertilization, a blastocyst attaches to the lining of the B. uterus.