Choose the most appropriate answer:

(a) Internal fertilization occurs

   (i) in female body.

   (ii) outside female body.

   (iii) in male body.

   (iv) outside male body.

(b) A tadpole develops into an adult frog by the process of

    (i) fertilization. (ii) metamorphosis. (iii) embedding. (iv) budding.

(c) The number of nuclei present in a zygote is

     (i) none. (ii) one. (iii) two. (iv) four.


(a) (i)in female body


(b) (ii) Metamorphosis


(c)  (iii) One

The Zygote forms after the fusion of nuclei of sperm and nuclei of egg. So, 2 nuclei from sperm and egg become 1 nuclei

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.