MANAGMENT AND CONTINUTY OF LIFE

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2. Part A

1 Which of the following are human sense organs? I Eye lids II Ears III Tongue IV Skin

I and III only

II and IV only

II, III and IV only

I, II, III and IV

EYE LID IS IS A PART OF EYE.

Explanation

EYE LID IS IS A PART OF EYE.

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4. 4...........................of light takes place when light travel through two different media with alson in different densities.

Refraction of light occurs when light travels from one medium to another with a change in density. This change in density causes the light to change direction or bend as it passes through the boundary between the two media. This phenomenon is responsible for various optical effects, such as the bending of light in a prism or the apparent shift in position of an object when viewed through a glass of water.

Explanation

Refraction of light occurs when light travels from one medium to another with a change in density. This change in density causes the light to change direction or bend as it passes through the boundary between the two media. This phenomenon is responsible for various optical effects, such as the bending of light in a prism or the apparent shift in position of an object when viewed through a glass of water.

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5. 3. Reflection of light is carried on when a light rays ....................by an opaque surface.

When light rays hit an opaque surface, they bounce back or change direction. This phenomenon is known as reflection. Therefore, the correct answer is "reflected."

Explanation

When light rays hit an opaque surface, they bounce back or change direction. This phenomenon is known as reflection. Therefore, the correct answer is "reflected."

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6. 6. Which of the following is not a part of the eye?

Conjunctiva

Cornea

Cochlea

Choroid

COCHLEA IS HEARING PART.

Explanation

COCHLEA IS HEARING PART.

7. 3.

The figure above shows a cross-section of a human skin. Which of the parts labelled
A, B, C or D, is most sensitive to pain?

A

B

C

D

THE MOST OUTER RECEPTOR RECIEVES PAIN STIMULI

Explanation

THE MOST OUTER RECEPTOR RECIEVES PAIN STIMULI

8.

Which of the following conditions cannot be aided by using any of the above instruments? I Astigmatism II Night blindness III Short sightedness IV Colour blindness

I and III only

II and IV only

I, II and III only

I, II, III and IV

THESE TWO EYE DEFECTS ARE INHERITED FROM THEIR PARENTS

Explanation

THESE TWO EYE DEFECTS ARE INHERITED FROM THEIR PARENTS

9. 2.Which part of the human body is the first to receive external stimuli?

The brain

The sensory organ

Effectors

Nerves

THE BRAIN,NERVE AND EFFECTORS NOT THE FIRST PART STIMULI RECIEVE THE STIMULUS.

Explanation

THE BRAIN,NERVE AND EFFECTORS NOT THE FIRST PART STIMULI RECIEVE THE STIMULUS.

10. 7.The figure above shows a sight defect. What causes this sight defect?

Reading books in dim light

A thick lens

A short eyeball

Fewer cells on the retina

THE IMEJ IS NOT FORM ONTO RETINA

Explanation

THE IMEJ IS NOT FORM ONTO RETINA

11. 5.The figure above shows a cross-section of the human ear. Which of the parts, labelled A, B, C or D, is not involved in the hearing mechanism?

A

B

C

D

THIS PART INCHARGE IN BODY BALANCE ONLY.

Explanation

THIS PART INCHARGE IN BODY BALANCE ONLY.

12. 4.When our nose produces too much mucus, we cannot smell well. What happens when our
nose is completely dry?

Our nose can immediately detect smells

Our nose will produce thin mucus

Our nose cannot detect smells

Our nose can only detect pleasant smells

MUCUS IS NEEDED TO DETECT CHEMICAL SUBSTANCES IN AIR THAT ENTER HUMAN NOSERILL

Explanation

MUCUS IS NEEDED TO DETECT CHEMICAL SUBSTANCES IN AIR THAT ENTER HUMAN NOSERILL

13. 10.

The apparatus in the figure above was set up and left for five days. What will you observe after five days?

The shoots will grow upwards and the roots will grow to the right

The shoots will grow upwards and the roots will grow downwards

The shoots will grow upwards and the roots will grow to the left

The shoots and roots will grow to the left

THE SHOOTS RESPONSE TO LIGHT AND THE ROOTS RESPONSE TO WATER

Explanation

THE SHOOTS RESPONSE TO LIGHT AND THE ROOTS RESPONSE TO WATER

14. 1. State two types of animal visions

a).................................................

b)..................................................

The correct answer is monocular and stereoscopic. Monocular vision refers to the ability of animals to see with only one eye, while stereoscopic vision refers to the ability to perceive depth and distance using both eyes. Monocular vision allows animals to have a wider field of view, while stereoscopic vision provides better depth perception and helps with tasks such as hunting and navigating through complex environments.

Explanation

The correct answer is monocular and stereoscopic. Monocular vision refers to the ability of animals to see with only one eye, while stereoscopic vision refers to the ability to perceive depth and distance using both eyes. Monocular vision allows animals to have a wider field of view, while stereoscopic vision provides better depth perception and helps with tasks such as hunting and navigating through complex environments.

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Managment And Continuty Of Life