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The process for which energy is required is ______.
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Active transport is one in which the ions outside the roots move in by utilising ______.
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Define the following term:
Active transport
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Name the three intrinsic features which reduce the rate of transpiration.
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Give a reason/suitable explanation.
Nerium loses less amount of water during transpiration.
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Three cylinders of potato were carefully dried on blotting paper and weighed. Each piece weighed 3 grams. Each one was placed in the beaker as shown below:

Answer the following questions:
- After 48 hours, which potato cylinder would be the heaviest?
- The movement of which substance is mainly responsible for the weight change in the potato cylinders?
- Name and define the process which is responsible for the movement of the substance mentioned in answer (b).
- Write specific names of the processes which occur in beakers B and C. [kinds of processes defined in answer (c)].
- Would there be any difference in the weight of the potato cylinder in beaker A after 48 hours? Give reason.
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The optimum temperature for the process of photosynthesis is ______.
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Unwanted disturbing sound, even if it is music next door, is noise.
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People routinely working in noisy places are not much affected by noise.
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Define the following term:
Noise
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The kind of lens required to correct Myopia
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Fibrin, Platelets, Thromboplastin, Fibrinogen, Thrombin.
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Give appropriate biological/technical terms for the following: Cellular components of blood containing hemoglobin
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The mineral ion needed for the formation of blood clot is :
A. Potassium
B. Sodium
C. Calcium
D. Iron
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State the main function of the Lymphocytes of blood
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Give scientific reasons: Blood flows in arteries in spurts and is under pressure.
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The diagram given below represents a certain stage of mitosis:

- Identify the stage of cell division.
- Name the parts labelled A and B.
- What is the unique feature observed in this stage?
- How many daughter cells are formed from this type of cell division?
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Oxygen combines with haemoglobin present in RBC and forms _____.
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the biological/technical terms for the lens of eye losing flexibility resulting in a kind of long-sightedness in middle aged people.
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The diagrams given below are cross sections of blood vessels:

(i) Identify the blood vessels A, B and C.
(ii) Name the parts labelled 1 to 3.
(iii) Name the type of blood that flows through A.
(iv) Mention one structural difference between A and B.
(v) In which of the above vessels does exchange of gases actually take place?
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