Tag: introduction to locomotion

Questions Related to introduction to locomotion

What evidence convinced scientists that Archaeopteryx should be classified as a bird rather than a small dinosaur?

  1. Scales.

  2. Toothless, elongated mouth like beak.

  3. A tail similar to that of modern birds.

  4. Fused collar bone, indicating flying ability.


Correct Option: D

Presence of furcula is a characteristic feature 'of

  1. Frogs

  2. Reptiles

  3. Birds

  4. Mammals


Correct Option: C
Explanation:

The clavicle and inter clavicle form a V-shaped furcula or wish bone or merry thought in birds.

A skull excavated from a place had large zygomatic arches, 2 pairs of large incisors, 2 pairs of premolars following a gap and 3 pairs of large molars. The foramen magnum was direction posterior. This skull belongs to a 

  1. Predatory mammal with bipedal locomotion

  2. Predaceous dinosaur with bipedal locomotion

  3. herbivorous mammal with Quadrupedal locomotion

  4. Herbivorous dinosaur with Quadrupedal locomotion


Correct Option: A
Explanation:

A skull excavated from a place had large zygomatic arches, 2 pairs of large incisors, 2 pairs of premolars following a gap and 3 pairs of large molars. The foramen magnum was direction posterior. This skull belongs to a mammalian skull because it is predatory mammal with bipedal locomotion.

So, the correct option is ‘predatory mammal with bipedal locomotion’.

Match column I with column II and select the correct option from the codes given below.

 Column I  Column II
A. Amoeboid movement (i) Limbs
B. Ciliary movement (ii) Leucocytes
C. Flagellar movement (iii) Trachea
D. Muscular movement (iv) Spermatozoa
  1. A - (iii) B - (ii) C - (i) D - (iv)

  2. A - (ii) B - (iii) C - (iv) D - (i)

  3. A - (i) B - (ii) C - (iii) D - (iv)

  4. A - (iv) B - (ii) C - (i) D - (iii)


Correct Option: B

Who is the author of the book 'Gait of animals'?

  1. Leeuwenhoek

  2. Aristotle

  3. Socrates

  4. Swaminathan


Correct Option: B
Explanation:

The author of the book 'Gait of animals' is Aristotle. It was written in 350 BC.
This book consists of information about the movement of animals. Gait is the pattern of movement of the limbs of animals, during locomotion over a solid substrate. Most animals use a variety of gaits, selecting gait based on speed, terrain, the need to maneuver, and energetic efficiency. Aristotle was an ancient Greek philosopher and scientist born in the city of Stagira, Chalkidiki, in the north of Greece. He was a student of Plato and considered as an important figure in western philosophy.

  • So, the correct option is 'Aristotle'.

Read the following statements and select the correct 
Statement 1 : Locomotion is the movement of an individual from one place to another. 
Statement 2 : All movements are locomotions buts all locomotions are not movement.

  1. Both statements 1 and 2 are correct

  2. Statement 1 is correct but statement 2 is correct

  3. Statement 1 is Incorrect but statement 2 is correct

  4. Both statements 1 and 2 are incorrect


Correct Option: A
Explanation:

Both the statements are true.

So, the correct option is 'Both statements 1 and 2 are correct'.

Which of the following muscles are not able to contract voluntarily?

  1. Duodenal muscles

  2. Pharyngeal muscles

  3. Skeletal muscles

  4. Lip muscles


Correct Option: A
Explanation:

Muscles which are able to contract voluntarily are only skeletal muscles.

A) Duodenal muscles are not skeletal but smooth muscles and are therefore not able to contract voluntarily.
B) Pharangeal muscles are skeletal muscles and are hence able to contract voluntarily.
C) Skeletal muscles are under voluntary control and can be contracted voluntarily.
D) Lip muscles are skeletal muscles and are hence able to contract voluntarily.
So, the answer is 'duodenal muscles'.

Which of the following statements is not true ?

  1. The cartilage is not as hard as bones.

  2. A snake moves by making loops.

  3. All animals show exactly similar movements.

  4. Snails move with the help of their muscular feet.


Correct Option: C
Explanation:
All animals do not show exactly similar movements.
Animal movements are usually based on their habitat. Different animals have different organs for locomotion. For example, Snakes crawl by forming loops while birds fly with their wings. 

Taxis is movement in

  1. Single cell

  2. Single-celled organism

  3. Cell organelles

  4. All the above


Correct Option: D
Explanation:

Taxis is a kind of behavioural response of a cell, cell organelles or an organism to an external stimulus such as light or food. It is the orientation of an organism or a cell in a specific spatial relationship to a stimuli. If the movement is towards the stimuli it is positive taxis and if it is away from the stimuli it is negative taxis. 

Thus, the correct answer is option D. 

Which of the following features is common to all animals without any exception?

  1. Locomotion

  2. Specialised nervous system

  3. Multicellularity

  4. Herbivorous mode of nutrition


Correct Option: A
Explanation:
  • Locomotion is the active movement i.e. with consumption of energy shown by all organism. Need, type and extent of locomotion differ from organisms to organism based on their organisation. 
  • The specialised nervous system is seen in only organisms with organ system level of organisation. 
  • Several organisms are unicellular, hence multicellularity is not a common feature of all organisms. 
  • All organisms differ in their mode of nutrition. They can be autotrophic or heterotrophic. If heterotrophic, they can be herbivores, carnivores or omnivores.
  • So, the correct option is 'Locomotion'.