IGCSE Biology Paper-5: Specimen Questions with Answers 9 - 11 of 62

Question number: 9

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There are two plants. Plant X will not survive in Sahara desert. Give two reasons. Why?

Figure shows two different plants

Figure Shows Two Different Plants

Figure shows two different plants (Aquatic plant and desert plant)

Explanation

Plant X has short roots, which will not be able to obtain enough water from the desert area as well as its leaves has large surface area so heat will evaporate the water.

Question number: 10

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Identify phylum of given animal with four characteristics

Image shows starfish

Image Shows Starfish

Image shows starfish, identify its phylum

Explanation

Given animal is related to phylum Echinodermata. Starfish

Characteristics-

  • Its shape is Star type and body plan consisting of a central disc and numerous radiating arms.
  • Skeletal support for the arms is provided by the ossicles of the body wall, which combine with those of the central disc, giving the arm a very broad based attachment to the disc.
  • Locomotion by asteroids is done by means of the podia (tubefeet)
  • Most starfish are predators, feeding on slow-moving prey such as mollusks and barnacles

Passage

Some leaves sample are given here which are arrange in different manner.

Figure shows different kind of leaves

Figure Shows Different Kind of Leaves

Figurw shows some leaves sample are given here which are arrange in different manner, identify them

Question number: 11 (1 of 2 Based on Passage) Show Passage

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Name the different leaf arrangement related to figure

Explanation

Plant A-Alternate leaf arrangement

Plant B-Opposite leaf arrangement

Plant C-Whorled leaf arrangement