With reference to heterotrophic eukaryotic organisms, Fungi, consider the following statements:
1. All fungus are parasites as they use host organism for food.
2. Lichens have a symbiotic relationship of blue-green algae and fungus.
3. Yeasts and mushrooms are varities of fungus.
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The most common nutrients causing eutrophication are:
Consider the following statements about ‘Human Body’:
1. Muscles contain special proteins which contract and relax to cause movement.
2. We can control the movement of all the muscles in our body.
Which of the statement(s) given above is/are correct?
Which of the following statement(s) is/are correct?
1. Saturated hydrocarbons are linked by only single bonds between the carbon atoms while unsaturated carbon compounds have double or triple bonds.
2. Saturated hydrocarbons generally give a clean flame while unsaturated carbon compounds give a yellow flame with lots of black smoke.
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In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read the statements given below carefully:
Assertion (A): The Sun at the sunrise or the sunset appears red whereas at noon, the Sun appears white.
Reason (R): Light from the Sun near the horizon passes through larger distance in the earth’s atmosphere than the light from the Sun overhead.
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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?
Read the following statements carefully:
1. Vector-borne diseases are caused by parasites, viruses and bacteria.
2. Skin infections are generally caused by different kinds of fungi.
3. Elephantiasis is a disease caused by different species of worms.
Which of the statement(s) given above is/are correct?
Consider the following statements about the ‘properties of ethanol’:
1. Ethanol is insoluble in water.
2. Consumption of small quantities of dilute ethanol causes drunkenness.
3. Ethanol can be blended with diesel.
4. Ethanol is used as a solvent in many medicines.
Which of the statements given above are correct?
Which of the following are the properties of the image formed by a plane mirror?
1. The image is always real and erect.
2. The size of the image is equal to that of the object.
3. The image formed is as far behind the mirror as the object is in front of it.
4. The image is laterally inverted.
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The use of an electric fuse protects the electric circuit and the appliances from a possible damage by
In the context of nature of light, read the following statements carefully:
1. Light does not travel in the same direction in all mediums.
2. Light propagates with different speeds in different mediums.
3. Light travels fastest in air with speed of 3×108 m/s.
4. Speed of light reduces considerably in glass or water.
Which of the statements given above is/are correct?