A large regional community primarily determined by climate is called_____.

1. 1. Biome
   2. Population
   3. Community
   4. Habitat

The air spaces may comprise upto _____of total volume of leaf surface?

1. 1. 0.1
   2. 0.2
   3. 0.4
   4. 0.6

Who discovered the living cell first time?

1. 1. Robert hooke
   2. Robert brown
   3. Rudolf virchow
   4. Antoni van leeuwenhoek

_____are needed as a source of energy for the vital activities of the body?

1. 1. Calcium
   2. Carbohydrates
   3. Iron
   4. Water

Dogs mostly show which type of Diabetes Mellitus:

1. 1. Type 2 diabetes
   2. Type 1 diabetes
   3. Both a & b
   4. All of these

Nitrifying bacteria are the examples of_____.

1. 1. Hetrotrophic bacteria
   2. Saprophytic bacteria
   3. Parasitic bacteria
   4. Chemosynthetic bacteria

Euglena belongs to the kingdom_____.

1. 1. Protista
   2. Fungi
   3. Monera
   4. All of them

Life span of Red Blood Cells_____.

1. 1. 150 Days
   2. 80 Days
   3. 120 Days
   4. 100 Days

Which of the following transmits nerve impulse from receptors to central nervous system?

1. 1. Motor neuron
   2. Sensory neuron
   3. Associative neuron
   4. All of these.

Steps Involved in scientific method are?

1. 1. Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion
   2. Hypothesis –>Accumulated data –> observation & experimentation –> conclusion
   3. New data —> Conclusion —> Accumulated data —> Observation & experimentation
   4. Accumulated data – New data – Observation & experimentation – Hypothesis –> Conclusion