121.  

What does A, B and C indicates in the given diagram ?

A. A = head B = tail C = female

B. A = head B = tail C = male

C. A = tail B = head C = female

D. A = tail B = head C = male

Answer : Option B

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122.  

Choose the correct combination of labeling from the option given

A. A = collar B = trunk C = proboscis

B. A = proboscis B = collar C = trunk

C. A = proboscis B = collar C = tail

D. A = collar B = trunk C = tail

Answer : Option B

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123.  

Select the correct option for the region labelled as A, B and C in the given diagram ?

A. A = Never cord B = Notochord C = Gill slits D = Post anal part

B. A = Nerve cord B = Noto chord C = post and part D = Gill slits

C. A = Notochord B = Gill slits C = Neeve chord D = Postanal part

D. A = post anal part B = Gill slits C = Nerve cord D = Notochord

Answer : Option C

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124.  

Identify the animal

A. Ascidia

B. Salpa

C. Amphioxus

D. Doliolum

Answer : Option A

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125.  

Choose the correct combination for the labelling in the diagram from the given option.

A. A = Endoderm B = Mesoderm C = Ectoderm

B. A = Mesoderm B = Endoderm C = Ectoderm

C. A = Mesoderm B = Ectoderm C = Endoderm

D. A = Endoderm B = Ectoderm C = Mesoderm

Answer : Option B

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126.  

Symmetry observed in diagram is ________

A. Bilateral

B. Radial

C. Asymmetrical

D. All of the abovr

Answer : Option B

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127.  

In the given diagram, what does ‘A’ represent

A. cavity

B. gut

C. coelom

D. pseud coelom

Answer : Option C

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128.  

A = Sponges have a water transport or canal system.

R = The body is supported by skeleton made up of CaCO3 in porifora.

A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion

B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C. Assertion is true but reason is false

D. Both Assertion and Reason are false.

Answer : Option C

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129.  

A =Sucker is present in the parasitic forms in liver fluke.

R =They absorb nutrients from the nest.

A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion

B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C. Assertion is true but reason is false

D. Both Assertion and Reason are false.

Answer : Option B

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130.  

A =Sucker is present in the parasitic forms in liver fluke.

R =They absorb nutrients from the nest.

A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion

B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C. Assertion is true but reason is false

D. Both Assertion and Reason are false.

Answer : Option A

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