COMPULSORY QUESTION
7. (A) Write only the correct answer in the Answer Book. Do not reproduce the questions.

(1) Contractile vacuole in Protozoa is basically concerned with:
(b) Osmoregulation

(2) Gammules are produced in:
(c) Porifera

(3) Scales in Reptiles originate from:
(a) Ectoderm
(b) Mesoderm
(c) Endoderm
(d) None of these

(4) The Chordates are dissected from:
(b) Ventral side

(5) Open type of blood vascular system is present in:
(c) Molluses

(6) Frog has the following number of Neck Vertebrae:
(d) Zero


(7) Insects have not adapted to the environment:
(a) Aquatic

(8) The true jaw is not present in:
(c) Agnatha

(9) Sea Horse is included in:
(a) Pisces

(10) A house fly has the following number of legs:
(c) Six

(B) Check which of the following statements are true or false. On your answer sheets just write the question number and T or F.

(11) Some sponges are found in freshwater also. F
(12) Choanocysts are found in Coelentrates. F
(13) Coral reefs are present in the sandy coasts of Karachi. F
(14) All the internal body cavities are not Coelome. T
(15) Mouth parts in Arthropodes are modified appendages. T
(16) The appearances of different stages in the embryonic development of a mammal is called as Metamorphosis. F
(17) The major part of the Chordate body is Mesodermal in origin. T
(18) The Echinoderms and Chordates are Enterocoelic.
(19) Girraffe and goat are similar in having seven neck vertebrae. T
(20) The mammals are characterized by having Mammary glands. T

__________________
~Miss zoologist~