a. Zygote divides to form __1__ which is implanted in the uterus.
b. The structure which provides vascular connection between the foetus and the uterus is called _2___.
c. Inner cell mass contains certain cells called __3__ which have the potency to give rise to all the tissues and organs.
d. By the end of __4__, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed.
e. Immediately after implantation, the __5___ differentiates into an outer layer called ectoderm and an inner layer called endoderm.
a. Zygote divides to form __1__ which is implanted in the uterus.
b. The structure which provides vascular connection between the foetus and the uterus is called _2___.
c. Inner cell mass contains certain cells called __3__ which have the potency to give rise to all the tissues and organs.
d. By the end of __4__, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed.
e. Immediately after implantation, the __5___ differentiates into an outer layer called ectoderm and an inner layer called endoderm.
The correct option is C 1 - blastocyst, 2 - placenta, 3 - stem cells, 4 - first trimester, 5- inner cell mass
After filling the correct options
Zygote divides to form a blastocyst (1) which is implanted in the uterus.
The structure which provides vascular connection between the foetus and uterus is called placenta (2).
Inner cell mass contains certain cells called stem cells (3) which have the potency to give rise to all the tissues and organs.
By the end of the first trimester (4), most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed.
Immediately after implantation, the inner cell mass (5) differentiates into an outer layer called ectoderm and an inner layer called endoderm.
Final answer:
(d) 1 - blastocyst, 2 - placenta, 3 - stem cells, 4 - first trimester, 5 - inner cell mass
After filling the correct options
Zygote divides to form a blastocyst (1) which is implanted in the uterus.
The structure which provides vascular connection between the foetus and uterus is called placenta (2).
Inner cell mass contains certain cells called stem cells (3) which have the potency to give rise to all the tissues and organs.
By the end of the first trimester (4), most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed.
Immediately after implantation, the inner cell mass (5) differentiates into an outer layer called ectoderm and an inner layer called endoderm.
Final answer:
(d) 1 - blastocyst, 2 - placenta, 3 - stem cells, 4 - first trimester, 5 - inner cell mass
