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