A) a nucleus B) a fetus C) an embryo D) an implant
A) in the ovary B) in the vagina C) in the fallopian tube D) in the uterus
A) vagina B) uterus C) amnion D) placenta
A) ear cells B) eye cells C) blood cells D) lung cells
A) the umbilical cord B) the developing nerves C) the spinal cord D) the amniotic fluid
A) an embryo B) a fetus C) a zygote D) a newborn
A) 25 B) 40 C) 48 D) 17
A) 2 years B) 1 year C) 5 years D) 3 years
A) There is loss of flexibility. B) The reproductive system matures. C) Permanent teeth appear. D) Eyesight deteriorates.
A) six to ten B) several million C) one D) a few hundred
A) It contracts to help the mother give birth. B) It becomes an organ in the developing embryo. C) It contains very few blood vessels. D) It’s an exchange organ between mother and embryo.
A) the uterus B) labor C) the placenta D) full-term
A) the uterus B) a fallopian tube C) the umbilical cord D) the amnion
A) Baby teeth appear B) You need little sleep C) You begin to read D) You begin to run |