INSIGHT UPSC QUIZ

 The parasitic nutritive strategy, by which some organisms derive nutrition from plants or animals without killing them, is used by which of the following organisms?

1. Cuscuta (amar-bel)

2. Ticks

3. Bread moulds

4. Tape-worms

Select the correct answer using the code given below.

Fertilizers are commercially produced plant nutrients. In this context, consider the following statements:

1. Fertilizers get washed away due to excessive irrigation.

2. Micro-organisms in the soil are harmed by the continuous use of fertilizers.

3. Fertilizers supply nitrogen, phosphorus and sodium to the soil. 

Select the correct answer using the code given below:

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:

 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

Select the correct answer using the code given below:

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:

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 about pesticide residue in our food chain:

1. It is introduced in the food chain by aquatic plants and animals.

2. These chemicals get accumulated progressively at each trophic level. 

3. Human body accumulates minimum concentration of these chemicals.

Select the correct answer using the code given below:

 Consider the following statements:

Consider the following statements about Carbon dioxide (CO₂):

1. Volcanic eruptions are a natural source of Carbon dioxide in the atmosphere.

2. Carbon dioxide is confined only to the tropospheric layer of the atmosphere. 

3. Excess of Carbon dioxide in the air is removed by green plants by respiration.

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?