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

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Question 9

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Short Answer▾

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

Figure Shows Two Different Plants

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 10

Describe in Detail

Essay▾

Identify phylum of given animal with four characteristics

Image Shows Starfish

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

Question 11 (1 of 2 Based on Passage)

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Write in Short

Short Answer▾

Write two examples of A type plants, B type plants and C type plant (Related to leaf arrangement)

Explanation

Examlpes of Plant A (-Alternate leaf arrangement) -1 Barberry 2. Smoke bush

Examlpes of Plant B (Opposite leaf arrangement) 1-Maple trees 2. olive trees

Examlpes of Plant C (Whorled leaf arrangement) 1- Blackboard tree 2. Lemonwood

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