CIE Biology Paper-4: Specimen Questions 55 - 57 of 120

Question number: 55

Essay Question▾

Describe in Detail

Is there any relationship between the size of pupil and size of iris of human eye?

Explanation

The pupil is the opening of the eye by which light enters in the eye. The size of opening is depend on the amount the light present. The size of pupil become smaller as the iris part of eye become larger and the size of pupil become larger as the iris become smaller. Therefore, we can say the size of the iris determines the size of the pupil.

shows changes in shape of pupil in different level of light

shows changes in shape of pupil in different level of light

Image shows changes in shape of pupil and iris of human eye in different level of light

Question number: 56

Short Answer Question▾

Write in Short

Figure shows a muscle structure. Label the part X, Y and Z in given diagram

Image shows a muscle structure

Image shows a muscle structure

Image shows a muscle structure Label the part X, Y and Z

Explanation

Part X-Muscle Fibre

Part y-Perimysium

Part z-Epimysium

Question number: 57

Essay Question▾

Describe in Detail

Different birds have different types of feet. Describe them

Explanation

Different birds have different types of feet such as-

1-Perching bird feet- They have feet that help them to grip thin or thick branches easily. They have four toes and can move each toe independently. Example-Pigeons, Sparrows, crow, parrots.

Image shows feet of some birds

Image shows feet of some birds

Image shows feet of parrot, crow, pigeon and sparrow (Perching bird feet)

Talons Feet- They need sharp, hooked claws to catch their prey, which are called as Talons. Example- Eagle, Hawk, Vulture and owl feet.

here Image shows feet of some birds

here Image shows feet of some birds

Image shows feet of Eagle, Hawk, vulture and owl (Talons Feet)

Trowel Feet- Trowel is a tool used to digging. Hen’s feet work like trowels to scratch the mud. Example-Hen and rooster

bird Image shows feet of some birds

bird Image shows feet of some birds

Image shows feet of Hens and rooster (Trowel Feet)

Webbed feet- Webbed feet work like paddles and help these in swimming

Example-Duck and Goose

Image shows feet Duck and Goose

Image shows feet Duck and Goose

Image shows feet of some birds

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