Which of the following is/are formed from ectoderm layer during embryonic development in triploblastic animals?
a) skin (integumentary system)
b) nervous system
c) lining of the digestive tract
d) both a and b
Which of the following is/are formed from endoderm layer during embryonic development in triploblastic animals?
a) glands associated with digestive system
b) muscles and bones
c) lining of the digestive tract
d) both a and c
Which of the following is/are formed from ectoderm layer during embryonic development in triploblastic animals?
a) skin (integumentary system)
b) nervous system
c) lining of the digestive tract and associated glands
d) none of these
Explanation: all the remaining body parts are derived from mesoderm e.g. muscles, bones reproductive system, excretory system etc.
On the basis of body cavity or coelom, triploblastic animals are classified into …….types.
a) two
b) three
c) four
d) five
Explanation: 1. Acoelomates, 2. Pseudocoelomates and coelomates
Those animals which do not have body cavity are ………..
a) coelomates
b) pseudocoelomates
c) acoelomates
d) non-coelomates
Explanation: loose tissue called mesenchyma or parenchyma is present b/w two layers filling the space and provide support and protection to the internal organs
Which of the following system/s is/are developed in acoelomates?
a) nervous system
b) excretory system
c) transport system
d) both a and b
