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When light enter the human eye, it passes through the different parts of the eye. In this context arrange the following in the correct sequence:
Unicellular organism are unique because they are made up of a single cell only. Which of the following is/are examples of unicellular organisms?
1. Amoeba
2. Yeast
3. Bacteria
Select the correct answer using the code given below:
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?
Consider the following statements:
1. Cold-blooded animals do not have the capacity to regulate their body temperature.
2. Amphibians are cold-blooded animals and reptiles are warm-blooded animals.
Which of the statements given above is/are correct?
The nearest and the farthest points up to which a normal human eye can see objects clearly are between:
Read the following statements carefully and select the correct answer from the code given below:
1. Dugong (Dugong dugon) is an herbivorous mammal.
2. Dugongs are listed as Critically endangered on the IUCN Red List of Threatened Species.
3. Recently, an announcement was made by Tamil Nadu State government for the set-up of Dugong conservation reserve.
Which of the statements given above is/are correct?
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.
Select the correct answer using the code given below:
Read the following statements carefully:
1. Motion of the moon around the earth.
2. Tides in open seas.
3. Rotation of earth.
4. Motion of planets around the Sun.
Which of the events given above are result of force of ‘Gravitation’?
Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil. In this context, consider the following statements:
1. The organic matter in manure helps in improving the soil structure.
2. It increases the water holding capacity in sandy soils.
3. It causes water logging in clayey soils.
Select the correct answer using the code given below:
If we study a cell under a microscope, we will come across which among the following bodies inside it?
1.