Parazoa MCQ with Answers PDF Download – Test 288

MCQ 1436: There is gelatinous layer mesenchyme which is present between pinacoderm and:

1. choanoderm
2. epiderm
3. mesoderm
4. endoderm

MCQ 1437: Under the central cells of the blastoderm, a pool of fluid develops giving the area a translucent appearance called:

1. area opaca
2. area pellucida
3. area translucent
4. all of above

MCQ 1438: Somites are seen in the embryo of about:

1. 12-14 hours
2. 15-16 hours
3. 25-26 hours
4. 20-23 hours

MCQ 1439: The male and female sex organs appear on the same prothallus in the region of under surface, this property is:

1. monoecious
2. diecious
3. triecious
4. quadecious

MCQ 1440: The endometrium is made receptive for the implantation of a zygote by:

1. estrogen
2. progesterone
3. testosterone
4. oxytocin