What is formed when two gametes involved ?

What are gametes ?

In which sort of reproduction are gametes fuse ?

What is this act of fusion called ?

Match the terms given in column A with those given column B :

Column A

(i) Sperm

(ii) Ovary

(iii) Oviduct

(iv) Tests

Column B

(a) Female organ

(b) Egg tube

(c) Male organ

(d) Male gamete