Tag: zoology

Questions Related to zoology

Initial causes of ecological succession includes:

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Climatic and Biotic factors

  2. Abiotic Factors

  3. Water Vapours

  4. Air Precipitation

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Correct Option: A

Ecotype is a type of species in which environmentally induced variations are

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Temporary

  2. Genetically fixed

  3. Genetically not related

  4. None of the above

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Correct Option: B

Non living things in an environment is known as

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Biotic Factors

  2. Abiotic Factors

  3. Biotic and abiotic factors

  4. All of above

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Correct Option: B

Which of the following is not properly matched?

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Formaldehyde- Carcinogenic

  2. Sulphur dioxide - Respiratory problems

  3. Nitrogen oxide - Brown air

  4. Mean annual temperature - $25^o$C

  5. Photochemical smog - Grey air

Show answer
Correct Option: D
Explanation:

Mean annual temperature is calculated by subtracting the lowest recorded temperature from the highest recorded temperature of the of the day. It can vary depending on the weather and climate of an area.

A. Formaldehyde has been classified as cancer causing agent by the EPA. It has shown leukaemia incidences.
B. Sulphur dioxide is responsible for the respiratory tract diseases like asthma, bronchitis etc.
C. Nitrogen oxide is called the brown air because of the change in frequencies of absorption of light when nitrogen combines with the oxygen.
D. Mean annual temperature can vary depending on the weather and climatic conditions.
E. Photochemical smog forms grey air due to the formation of ozone and PAN that decreases the visibility.
Hence, the correct answer is 'Mean annual temperature - 25$^{o}$C'

In what way a plant growing on a forest floor is adapted for its survival?

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Has shallow roots

  2. Requires low light

  3. Has a deep ta root

  4. Requires strong light

  5. Requires moist soil

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Correct Option: B
Explanation:

Plants growing on the forest floor (understorey) are adapted to lower Sunlight intensity or are shade loving. This is because, the dense canopy does not allow enough light to penetrate through and reach the forest floor. Light is the limiting factor for these plants and therefore, they are adapted to survive under low light conditions. Moisture availability and related adaptations are not of consideration. Thus, the correct answer is option B.

Which joint is more flexible in males than females?

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Public symphysis

  2. Deltoid ridge

  3. Deltoid tuberosity

  4. Sacroiliac joint

Show answer
Correct Option: A
Explanation:

The hip girdle is located in the lower part of the trunk. 

It is made up of three bones that are upper ileum, lower ischium and the pubis.
The acetabulum is formed by ileum, ischium and pubis but in mammals, the pubis is replaced by the cotyloid bone.

The pubic symphysis is present in mammals. The two innominate bones and sacrum together form a sort of bowel.
This is also an adaptation for the upright posture of the human body. The female pelvis is larger and has a broader front and larger bottom opening than the male pelvis. This is an adaptation for childbirth.

So, the correct option is 'Public symphysis'

Collar bone is 

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Scapula

  2. Stapes

  3. Coracoid

  4. Clavicle

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Correct Option: D
Explanation:

The clavicle is a long bone between the shoulder blade and the sternum and is known as the collar bone. They are called so because their presence seems to appear much like a collar. 


So, the correct answer is 'clavicle'.

Supination means turning plan

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. Upward

  2. Forward

  3. Downward backward

  4. Bending

  5. Straightening

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Correct Option: A
Explanation:

Pronation and supination are a pair of unique movements possible only in the forearms and hands, allowing the human body to flip the palm either face up or face down. The muscles, bones, and joints of the human forearm are specifically arranged to permit these unique and important rotations of the hands. So, the correct option is "A" (Upward).

Which of the following bone belong to axial skeleton?
I. humerus 
II.Vertebrla column
III. Skull 
IV. Pelvi giirdle
V. patella 

zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. I,II and III

  2. II,III and V

  3. I,III and iV

  4. II and III

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Correct Option: A

Match the following and mark the correct option :

Sr.No Column I Sr.No Column II
A. Sternum i. Synovial fluid
B. Glenoid cavity ii. vertebrae
C. Freely movable joint iii. Pectoral girdle
D. Cartilagenouns  iv. Flat bones
zoology movement and locomotion in man bones and movements our skeletal system and the skin human skeleton system

  1. A-ii,B-i,C-iii,D-iv

  2. A-iv,B-iii,C-i,D-ii

  3. A-ii,B-i,C-iv,D-iii

  4. A-iv,B-i,C-ii,D-iii

Show answer
Correct Option: A