Biology

School Level Biology Bits for DSC / CTET / Teacher Eligibility Test Exams

1. ____ is not the reason for bio diversity. 
Ans :   hunting, pollution, destruction of habitats
2. Petroleum will not be used in the production of ____. 
Ans :   bread mould
3. The method in which plastic can be reused is ____. 
Ans :   recycling
4. The use of percolation pit is ____. 
Ans :    increasing ground water level
5. ____ method is to be followed by farmers in scarcity of water. 
Ans :   drip irrigation
6. ____ happens if plants shed their leaves in autumn season. 
Ans :   loss of biomass occur
7. ____ can convert the absorbed colour energy sunlight into chemical energy. 
Ans :   producers
8. The mercury, arsenic and lead in pesticides ____. 
Ans :   do not breakdown
9. The bio indicators of heavy metal pollutants is ____. 
Ans :   fishes
10. Between grass and grasshopper food chain ends with ____. 
Ans :   consumers
11. The characters that transmit from parents to offspring are ____.
Ans :   Heritable characters
12. The structure of DNA is ____. 
Ans :   double helix
13. The study of fossils is called ____. 
Ans :   paleontology
14. The small changes within the species are called ____. 
Ans :   Micro evolution
15. The larva of frog resembles to ____. 
Ans :   Fish
16. The nerve which carries the hunger signals to the brain is ____. 
Ans :   vagus nerve
17. The papillae which are at the end of tongue is ____. 
Ans :   folliate papillae
18. The recognition of taste is done by the ___ cells present in the taste buds on the tongue. 
Ans :   receptor cells
19. The teeth which are used for tearing the food are ____. 
Ans :   incissors
20. The enzyme which acts on bolus is ____. 
Ans :    salivary amylase
21. Cotyledons are present in ____. 
Ans :   seed
22. ____ joins the embryo to the walls of uterus. 
Ans :   umbillical cord
23. Fission, budding and fragmentation are the types of ____. 
Ans :   asexual reproduction
24. ____ scientist discovered tissue culture. 
Ans :   Haberlandt
25. The layer formed around 12th week of pregnancy is ____. 

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Ans :   placenta


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