CIE Biology Paper-5: Specimen Questions 30 - 33 of 62

Passage

An infestation of body lice occurs when a certain type of lice invade the body and clothing. Lice are parasitic organism that feed on human blood and can infest the head, body, and pubic area.

shows a given above figure is lice

shows a given above figure is lice

Figure shows lice which is parasitic organism

Question number: 30 (1 of 3 Based on Passage) Show Passage

Short Answer Question▾

Write in Short

Name the class of arthropods to which this animal belongs with reason.

Explanation

Human lice fall under the phylum Arthropod because of the following features:

  • Triploblastic embryo, which means embryos, have three different types of tissues, the endoderm, mesoderm and ectoderm
  • Segmented bodies.
  • Exoskeleton composed of chitin, providing support and protection.

It belongs from the class Insect

Question number: 31 (2 of 3 Based on Passage) Show Passage

Short Answer Question▾

Write in Short

What are the common recognizing the signs of body lice

Explanation

  • intense itching (pruritus)
  • allergic reaction to body
  • red bumps on the skin
  • thickened or darkened skin mainly near the waist, if the lice have been there for a long time

Question number: 32 (3 of 3 Based on Passage) Show Passage

Short Answer Question▾

Write in Short

Make a large labelled drawing of the part of the parasite

Explanation

Image shows a parasite live on humans

Image shows a parasite live on humans

Image shows a parasite live on humans with all the parts of the parasite

Question number: 33

Essay Question▾

Describe in Detail

You are provided some ingredients –

  • flowers (preferably with white petals)
  • ink
  • a glass
  • water

Place the flower in the glass with water and colored ink. What will you see?

Explanation

When we place the flower in the glass with water and colored ink like red black blue etc. after a while we see the petals have colored petal ribs or veins, of the same color of the ink you added to the water. Normally plants absorb water in order to keep alive.

Plants have a tube system (called xylem) that distributes water and some nutrients to all parts of the plant. Using the colored water, we are actually able to see this tube system.

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