Give one significant difference between each of the following

Given one significant difference between each of the following : (i) Pollution and Pollutants . (ii) Biodegradable and Nonbiodegradable pollutants .

Give two significant differences between each of the following: (i) Racemose and Cymose inflorescence (ii) Self-pollination and Cross pollination.

Mention one significant difference between each of the following: (a) Sertoli cells and spermatogonial cells (b) Menarche and menopause

Give one significant difference between the following: Antibodies and Interferons

Give one significant difference between the following: Active immunity and Passive immunity

Give one significant difference between the following: B-lymphocytes and T-lymphocytes

Give one significant difference between the following: Antibody-mediated immune system and Cell-mediated immune system

Give one significant difference between the following pair: Humoral immunity and cell mediated immunity

Give one significant difference between the following pair: Benign tumour and malignant tumour

Give one significant difference between ECG and EEG.