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Consider the following statements:
1. Tendons are type of connecting tissue that connect muscles to bones.
2. Nerve impulses are transmitted with the help of tendons throughout our body.
Which of the statement(s) given above is/are correct?
Which among the following are the characteristic features of birds?
1. They are cold-blooded animals.
2. They lay eggs.
3. Two forelimbs are modified for flight.
4. They breathe through lungs.
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If we study a cell under a microscope, we will come across which among the following bodies inside it?
1. Nucleus
2. Plasma Membrane
3. Cytoplasm
4. Prokaryotes
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Vaccines are now available for preventing a whole range of infectious diseases. Which among the following infectious diseases are preventable by the use of vaccine?
1. Polio
2. Measles
3. Whooping cough
4. Human Papilloma Virus (HPV)
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In the context of ‘immunity’ in human body, which of the following statements is/are correct?
1. Skin on our body is an example of innate immunity.
2. Acquired immunity is characterised by memory.
3. Injecting the microbes deliberately during immunisation induce passive immunity.
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Which of the following statements about ‘Sponges’ is/are correct?
1. Sponges are generally marine organisms and are multicellular symmetrical animals.
2. In sponges, eggs and sperms are produced by the same individual.
3. Sponges reproduce asexually by formation of gametes and sexually by fragmentation.
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Consider the following statements:
1. Anti-viral medicines are harder to make as viruses have biochemical mechanisms of their own.
2. Anti-bacterial medicines target both bacteria and fungi.
Which of the statement(s) given above is/are correct?
1. Which of the following statement(s) in the context of ‘Human Eye’ is/are NOT correct?
1. Most of the refraction of the light rays entering the eye occurs at the outer surface of the crystalline lens.
2. Iris is a dark muscular diaphragm that controls the size of the pupil.
3. Pupil regulates and controls the amount of light entering the eye.
4. Retina is a delicate membrane having enormous number of light-sensitive cells.
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Which of the following statement(s) is/are correct?
1. The B-lymphocytes in human body produce an army of proteins in response to pathogens into our blood to fight with them.
2. The T-lymphocytes mediate cell-mediated immunity (CMI) which is responsible for the graft (transplanted body-part) rejection.
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Consider the following statements:
1. The direction of current is taken opposite to the direction of flow of electrons.
2. Resistance is a property of a conductor that generates heat in the electrical circuit.
3. The SI unit of electric current is Amperes.
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