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In context of cells in the human body, consider the following statements:
1. The shape and size of cells are related to the specific function they perform.
2. A cell is able to live and perform all its functions because of its components known as organelles.
3. All cells present in human body have the same organelles.
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Consider the following statements:
1. The aperture of the pupil of a human eye can be changed with the help of the ciliary muscles.
2. The curvature of human eye cannot be changed, because the lens of a human eye is fixed.
Which of the statements given above is/are correct?
If we study a cell under a microscope, we will come across which among the following bodies inside it?
1.
Fodder crops are raised as food for the livestock. Which among the following is/are fodder crops?
1. Sudan Grass
2. Oats
3. Wheat
4. Berseem
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In the Animal Kingdom, which of the following groups of organisms shows the highest level of cellular organisation?
1. Annelids
2. Sponges
3. Coelenterates
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According to Archimedes’ principle - When a body is immersed fully or partially in a fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it. Which among the following are based on the application of this principle?
1. Ships
2. Lactometer
3. Thermometer
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With reference to Pisces – a category of animals, consider the following statements:
1. Their skin is covered with scales and it has mucus glands on their skin.
2. They are aquatic animals that obtain oxygen dissolved in water by using gills.
3. Unlike humans, they are cold-blooded and have only three chambers in their heart.
Which of the statement(s) given above is/are correct?
Consider the following statements:
1. Some substances like carbon dioxide or oxygen can move across the cell membrane by a process called Osmosis.
2. In the cell’s external environment, the concentration of carbon dioxide is low as compared to that inside the cell.
Which of the statement(s) given above is/are correct?
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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Consider the following sources of protein:
1. Meat
2. Fish
3. Egg
4. Milk
Select the correct sequence of the sources of protein mentioned above in human diet in terms of maximum protein content: