In placental mammals,how does the fetus obtain nutrients and oxygen?
A) Maternal veins and and fetal arteries are directly connected in the chorionic villi.
B) Diffusion into the umbilical capillaries from maternal blood surrounding the chorionic villi.
C) Maternal blood cells are carried across the fetal capillary walls through special pores.
D) Maternal arteries and fetal veins are directly connected in the chorionic villi.
E) Diffusion into the umbilical cord from maternal blood surrounding the chorionic villi.
Correct Answer:
Verified
Q30: What is true of the corpus luteum?
A)Secretions
Q31: If a mammalian species that lives in
Q32: In mammals,gestation is defined physiologically as the
Q33: In humans,nitric oxide is an important gaseous
Q34: What type of contraception is the least
Q36: Implantation of the blastocyst into the uterine
Q37: The process by which cells acquire specialized
Q38: The sharp peak of estradiol secretion during
Q39: Place the events of parturition in the
Q40: What allows fetal hemoglobin to remove oxygen
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents