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