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6 marksPopulation Growth and Survival Factors

CSEC Biology · January 2015 · Paper 2 · Question 6(b)

Harry plants tomato seedlings 10 cm apart and Karen plants the same variety 30 cm apart. The plots of land are identical in size and are located next to each other. The plants in both plots receive the same amount of water and fertilizer. At harvest, Karen reaps many more tomatoes, which are larger and healthier than Harry's tomatoes.

Explain THREE factors that may have caused a lower yield of tomatoes in Harry's plot.

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Other parts of this question

  1. 6(a)(i)Complete Table 2 to match EACH organism with its natural habitat.[4 marks]
  2. 6(a)(ii)Describe briefly a technique for sampling organisms in the pond.[2 marks]
  3. 6(c)Suggest THREE ways by which human activity could adversely affect an oyster population living in a mangrove swamp.[3 marks]

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