Presence of gill slits in the embryo of all vertebrates supports the theory of
1). organic evolution
2). recapitulation
3). metamorphosis
4). biogenesis
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1. Which of the following is a flightless bird?
2. Negative feedback in amplifiers
3. Water can be separated from alcohol water mixture by
4. Which is the correct sequence in the food chain in grassland?
5. Vulcanization of rubber is carried out by adding
6. The chemical used in embalming biological materials is
7. The functional respiratory organ of a fully formed tadpole is the
8. Nuclear fission is caused by the impact of:
9. A passenger standing In a bus is thrown outward when the bus takes a sudden turn happens due to
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