Question

choose the odd one out in the following:

(i) seminiferous tubule, ovum, epididymis, sperm duct, urethra

(ii) sperm, implantation, fertilisation, ovum, after-birth

Answer 1

1. Here ‘urethra’ is the odd one as it is a part of excretory system where as all other four are parts of reproductive system.
2. Here ‘after birth’ is the odd one as all other parts are there before birth.