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External fertilisation occurs in  A) frog – snake  B) fish – snake C) frog – fish  D) fish – rat

Monjur Alahi

External fertilisation occurs in 

A) frog – snake 

B) fish – snake

C) frog – fish 

D) fish – rat


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1 Answers

Salim Ahmed Kawsar

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(C) frog – fish

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Find out the wrong pair. A) Man – Lungs B) Fish – Gills C) Frog – Gills D) Hydra – Body cavity

C) Frog – Gills

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The fertilisation which occurs outside the body is 

(A) External fertilisation

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Find out the incorrect sentence regarding fertilisation in fish 

(C) Male produces only one sperm

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The missing organism in food chain of grass → ? → frog → snake is : 

(A) Grasshopper

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Grass, grass hopper, snake, frog, eagle – find out the correct flow chart. 

A) grass → grass hopper → frog → snake → eagle

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Grass, grass hopper, snake, frog, eagle – find out the correct flow chart.  2 Answers 1 views
A grass land ecosystem had grass, grasshopper, snake, rabbit, frog and eagle. Then what are the primary consumers ? 

C) Grasshopper and rabbit

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Pick out the odd one out.  A) Fish  C) Lizard  B) Frog  D) Camel

Answer is (D) Camel

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Which of the following is necessary for internal fertilisation to occur but NOT necessary for external fertilisation?

(B) The sperm should reach inside the body of the female.

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Identify the animals which undergoes external fertilisation.

Answer is (A) i, ii

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