Choose the correct one a A- Chorionic villi → forms placenta b B-Yolk sac → Prevents desiccation of embryo c C- umbilical cord → Haemopoiesis d D- Blastocyst → Forms the embryo (A) a (B) b (C) c (D) d

Q. Choose the correct one

a A- Chorionic villi $\to$ forms placenta

b B-Yolk sac $\to$ Prevents desiccation of embryo

c C- umbilical cord $\to$ Haemopoiesis

d D- Blastocyst $\to$ Forms the embryo

1471 210 Human Reproduction Report Error

60%

20%

20%

Solution:

a	A- Chorionic villi	$\to$	forms placenta
b	B-Yolk sac	$\to$	Prevents desiccation of embryo
c	C- umbilical cord	$\to$	Haemopoiesis
d	D- Blastocyst	$\to$	Forms the embryo