Available Answers

1. 1.

   Fill in the blanks.

   1. Fish respire through _______________.
   2. _______________ can prepare their own food.
   3. All living things are made up of _________________.
   4. _______________ is made up of only one cell.
   5. Mammals respire through ________________.
2. 2.

   Tick (√) the correct option. 

   1. The stimulus for a sunflower is sunlight/air.
   2. Plants reproduce from seeds/eggs.
   3. Stimulus induces a change/response.
   4. Reproduction/Respiration helps in the continuity of life on the earth.
   5. Grouping makes the study of things easier/tougher.
3. 3.

   Complete the flow chart given below.

   

4. 4.

   Choose the correct answer.

   1. To breathe, living things need ___________________.
      1. air
      2. water
      3. soil
      4. food
   2. Mammals reproduce _________________.
      1. by giving birth to young ones
      2. by laying eggs
      3. from seeds
      4. none of these
   3. The gas plants use foe photosynthesis is _______________.
      1. oxygen
      2. carbon dioxide
      3. nitrogen
      4. any  of these
   4. An animal made up of only one cell is ________________.
      1. amoeba
      2. dog
      3. paramecium
      4. both (i) and (iii)
   5. a living thing that cannot move from one place to another on its own is ______________.
      1. cat
      2. lion
      3. plant
      4. cow
5. 5.

   Give one example of the following

   1. A living thing that can prepare its own food
   2. A plant whose leaves close on being touched
   3. A plant whose flower faces the sun
   4. An animal that respires through spiracles
   5. An animal that has gills
6. 6.

   Write true or false.

   1. Animals can prepare their own food. 
   2. Living things grow by increasing the size of their cells.
   3. All mammals breathe through lungs.
   4. During the process of respiration, carbon dioxide gas is produced.
   5. Things are grouped according to their characteristics.