29. The ectoderm of th e embryo gives rise to the a. lining of the digestive tra

Question

29. The ectoderm of th e embryo gives rise to the a. lining of the digestive tract b. blood vesselse. d. lungs 30. The yolk plug a. results from involution of endodermal cells b. appears during blastulation c appears during gastrulation e.a& MATCHING: Match itoms in column to those in column B. 31. epimere 32. hypomere 33. mesomere a. nephrotome b. ectoderm c. gastrocoel d. somite e.somatic mesoderm 34. Henson 's node 35. archenteron 36. Sclerotome a. heart b. epidermis c. skeletal muscle d. dermis e. cartilage 37. myotome 38. dermatome 39. splanchnic mesoderm 40. somatic mesoderm 41. telolecithal, meroblastic, discoidal 42. centrolecithal, meroblastic, superficial 43. oligolecithal, holoblastic, rotational 44. mesolecithal, holoblastic, radial a. Amphioxus b. mammals l c. insects d. birds dat .e. amphibian 45. oligolecithal, holoblastic, radial Match in sequential order 46. blastocoel ' 47. neural tube 48. notochord 49. primitive streak 50. morula d. 51. hyponere 52. germinal disk b. C. 53. gastrocoel 54. neurocoel 55. blastodisk

Explanation / Answer

29. Ectoderm is differetiated in epidermis, sibecious glands and lining the organs. It lines the digestive tract.

30. Option D is correct. Yolk plug is formed during blastopore formation by endodermal cells.

31. Epimere is a part of somite.

32. Hypomere is part of myotome and line the coelom

33. Mesomere is a blastomere of the medium size.

34. Hensen Node it is a group of cell on anterior of primitive streak at gastrula.

35. Archanteron is cavity also called digestive cavity of Gastrula.

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