Worksheet 3

1.
Which of these is true about the movement of the sunflower plant?
1. The flower shows movement.
2. The sun is the stimulus.
3. Movement of the sunflower plant is the response.
4. All of the above
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(d) All of the above
2.
Which is the smallest living structure of the sunflower plant?
1. Leaf
2. Cell
3. Stem
4. Flower
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(b) Cell
3.
Name the biotic component(s) that the sunflower plant must be interacting with.
1. Air
2. Sunlight
3. Bees
4. Soil
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(c) Bees
4.
If the flower was not there, would the bees be able to make their own food?
1. Yes. Bees would make their own food in the presence of sunlight.
2. No. Bees collect nectar from flowers. If no flower, then there will be no nectar.
3. Yes. Bees collect only pollen, which is their food.
4. Yes. Bees would survive by feeding on dead plants and animals.
5.
If a honey bee collects nectar from 30 sunflowers to make 10 gm of honey. How many sunflowers does it need to visit to make half a kg of honey?