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.
Select the correct answer using the code given below.
More Questions Selected Just For You. Attempt Now!
Read the following statements carefully in the context of ‘particulate pollutants’?
1. Smoke particulates consist of gaseous or mixture of gaseous and liquid particles formed during combustion of organic matter.
2. Dust is composed of fine solid particles produced during crushing, grinding and attribution of solid materials.
3. Mists are produced by particles of spray liquids and by condensation of vapours in air.
4. Fumes are generally obtained by the condensation of vapours during sublimation, and boiling.
Which of the statements given above are correct?
Vectors are living organisms that can transmit infectious pathogens between humans, or from animals to humans. The commonest vectors we all know are mosquitoes. Which among the following vector borne diseases are caused by mosquitoes?
1. Yellow Fever
2. Lymphatic Filariasis
3. Zika Fever
4. Japanese Encephalitis
Select the correct answer using the code given below:
Consider the following statements about ‘Photochemical Smog’:
1. It is a phenomenon of cool humid climate.
2. It occurs when sunlight acts on unburnt hydrocarbons and nitrogen oxides.
3. Ozone in photochemical smog is responsible for the haze.
Which of the statements given above is/are correct?
Consider the following statements with reference to the ‘magnetic field’ of a bar magnet:
1. Magnetic field is a quantity that has both direction and magnitude.
2. Inside the magnet, the direction of field lines is from its south pole to north pole.
3. Magnetic field-lines of two different magnets can intersect each other.
Which of the statement(s) given above is/are correct?
Consider the following statements about ‘Photochemical Smog’:
1. It is a phenomenon of cool humid climate.
2. It occurs when sunlight acts on unburnt hydrocarbons and nitrogen oxides.
3. Ozone in photochemical smog is responsible for the haze.
Which of the statements given above is/are correct?
Consider the following statements:
1. The e-Gopala App is a comprehensive breed improvement marketplace and information portal, directly used by farmers.
2. Web version of e-GOPALA has been developed by the Union Ministry of Fisheries, Animal Husbandry and Dairying.
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?
Compass is an important tool used for navigation since old days. In this context, consider the following statements:
1. The compass needle is a magnet which align itself in a particular direction.
2. The compass needle always points towards the magnetic south pole of the earth.
Which of the statement(s) given above is/are correct?
Which of the following diseases and their causative agents is NOT correctly matched?
Disease | Causative Agent |
1. Ringworms | Fungi |
2. Amoebiasis | Protozoan |
3. Plague | Bacterium |
Select the correct answer using codes given below:
If we study a cell under a microscope, we will come across which among the following bodies inside it?
1.