Study Biology Multiple Choice Questions (MCQ) PDF Download

MCQ 1: Philodendron flowers temperature may exceed

1. 30 °C
2. 36 °C
3. 40 °C
4. 46 °C

MCQ 2: In a damp environment, cobalt chloride (CoCl₂) paper can be replaced with

1. cobalt cyanide
2. cobalt carbide
3. cobalt thiocyanate
4. cobalt chlorate

MCQ 3: Cycling of Carbon (C), nitrogen (N₂), oxygen (O₂) and water (H₂O) is brought about by

1. chemical processes
2. physical processes
3. biological processes
4. all of above

MCQ 4: Rate of evaporation is decreased through the

1. sebaceous glands
2. protoplasm
3. thick layer of blubber
4. hair follicles

MCQ 5: If the fatty acids can take in no more of hydrogen atoms (H), it is known as

1. saturated fats
2. unsaturated fats
3. monosaturated fats
4. biunsaturated fats