Biology · Science General

Diversity in Living Organisms

3,323 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice zoology nervous system of man major divisions of nervous system introduction to control and coordination neurons and synapses

Which of the following is the most complete list of animals that have both a central nervous system. (CNS) and a peripheral nervous system (PNS)?

  1. Hydra, planarian, earthworm, rabbit, human

  2. Planarian, earthworm, rabbit, human

  3. Earthworm, rabbit, human

  4. Rabbit, human
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The CNS contains the brain and the spinal cord. Everything else but the CNS it is known as the PNS. The PNS contains nerves, which leave the brain and the spinal cord and travel to all the parts of the body.

So, the correct option is 'Earthworm, rabbit, human'.

Multiple choice

Which of the following is a parasite?

  1. Zebra

  2. Wolves

  3. Ringworm

  4. Pigs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. Ringworm is a fungal infection that acts as a parasite on human or animal skin.

Multiple choice biology skeleton and movements introduction to locomotion skeleton and joints movement in animals

Select the correct option. 

  1. Locomotion is shown by multi cellular organisms

  2. Paramecium uses tentacles for locomotion

  3. Hydra uses cilia for locomotion

  4. Kangroo cannot walk backward
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Locomotion is a feature exhibited by both unicellular and multicellular organisms. 
  • Paramecium uses cilia for its locomotion and Hydra uses somersaulting or gliding movement for its locomotion. 
  • Kangaroos can't walk backward. An unusual feature of the kangaroo is that it cannot walk backwards. This is because of its unusually shaped hind legs and bulky tail which can grow up to four feet long.

So the correct option is 'Kangaroo cannot walk backward'.

Multiple choice biology skeleton and joints introduction to locomotion movement in animals skeleton and movements

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.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All animals exhibit different patterns of movements. The movements differ with differences in the types of joints present in the animals. Example: In birds, the forelimbs are modified to result in wings, which leads to flying movement. In case of kangaroos, the hind limbs are modified such that they contain flexible muscles resulting in their jumping movement. In humans, the legs are modified so that they walk with two limbs only, as opposed by other vertebral mammals like dogs, cats etc. which have 4 limbs.

Hence the statement, 'all animals show exactly same movements' is false.

Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Streaming of protoplasm in amoeba is an example of

  1. Locomotion

  2. Movement

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  •  Locomotion is when the movement of a part of the body leads to change in the position and location of the organism. 
  •  In multicellular animals, these movements include walking, running, jumping, crawling, climbing, swimming, flying, galloping, slithering, and so on. 
  • Cytoplasmic streaming, also called protoplasmic streaming, the movement of the fluid substance (cytoplasm) within a plant or animal cell.  If one of the proteins remains fixed on a substrate, such as a microfilament or a microtubule, the motor proteins can move organelles and other molecules through the cytoplasm. 
  •  In some unicellular organisms, such as amoeba, it provides the mechanism for cell locomotion. Hence, Streaming of protoplasm in amoeba is an example of Movement.
    • So, the correct answer is 'Movement'.
Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

An example of amoeboid movement is

  1. Limbs

  2. Leucocytes

  3. Trachea

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Movement is a characteristic feature of living organisms. The different types of movement exhibited by cells of the human body are: 
  • Amoeboid movement: Leucocytes present in the blood show amoeboid movement. 
  • Ciliary movement: Reproductive cells such as sperms and ova show ciliary movement.
  •  Muscular movements:  Muscle tissue found inside of the heart, digestive organs, and blood vessels serve to move substances throughout the body. Hence, An example of amoeboid movement is Leucocytes.
So, the correct answer is 'Leucocytes'.
Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Which of the following assist locomotion in snake

  1. Scutes

  2. Parapodia

  3. Flagella

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Generally snakes have two kind of scales. Its top and sides are generally covered by smaller scales and The bottom of the snake is covered by short but very wide scales that look like rungs on a ladder.
  • These special scales at the bottom surface are called scutes.They form the belly of the snake and are integral in the snake’s ability to move.
  • Hence scutes assist in locomotion in snake.
  • So,the correct answer is 'Scutes'.
Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Movement of whole animal from one place to another place is called as

  1. Skeletal movement

  2. Non-skeletal movement

  3. Movement

  4. Locomotion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Locomotion is when the movement of a part of the body leads to change in the position and location of the organism. 
  •  In multicellular animals, these movements include walking, running, jumping, crawling, climbing, swimming, flying, galloping, slithering, and so on. Hence, the Movement of the whole animal from one place to another place is called Locomotion. 
    • So, the correct answer is 'Locomotion'.
Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Locomotion is the characteristic feature of

  1. Plants

  2. Animal

  3. Microorganisms

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • The movement of an organism from one place to another, often by the action of appendages such as flagella, limbs, or wings. 
  • In some animals, such as fish, locomotion results from a wavelike series of muscle contractions. 
  • Types of animal locomotion include walking, running, crawling, rolling, flying, climbing, swimming, skipping and jumping.
  •  Bacterial locomotion is of three types: Flagellar, Spirochaetal and Gliding movement. Hence, Locomotion is the characteristic feature of Animal and Microorganism.
 So, the correct answer is 'Both B and C'.

Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

Which of the following is not related to locomotion?

  1. Setae

  2. Tendons

  3. Pseudopods

  4. Hydrostatic skelton

  5. Typhlosol
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Setae are the bristle-like structures that serve in annelid locomotion. Tendon is a connective tissue structure that connects a muscle to another muscle, or a muscle to a bone and serves to transmit the force generated by a muscle during movement. Pseudopods are the outgrowth of the membrane and serve in locomotion in protists. A hydrostatic skeleton is found in many soft-bodied animals and is surrounded by muscles to serve in locomotion. A typhlosole is an internal fold of the intestinal wall found in some mollusks, lampreys and some annelids and echinoderms to serve as absorption surface. 

Therefore, the correct answer is option E.

Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

The motion that gives tetrapod mammals the greatest speed is with

  1. Front feet first

  2. Back feet first

  3. An asymmetrical gait

  4. All four feet together
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Gait is the pattern of movement of the limbs of animals, including humans, during locomotion over a solid substrate.
  •  Most animals use a variety of gaits, selecting gait based on speed and energetic efficiency. 
  • Different animal species may use different gaits due to differences in anatomy that prevent the use of certain gaits. 
  • In a symmetrical gait, the left and right limbs of a pair alternate, while in an asymmetrical gait, the limbs move together. Asymmetrical gaits are sometimes termed "leaping gaits", due to the presence of a suspended phase. Hence, The motion that gives tetrapod mammals the greatest speed is with An asymmetrical gait.
So, the correct answer is 'An asymmetrical gait'.

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

The adaptation mechanism of chameleon is

  1. To hibernate in the winter

  2. Changing colours to suit with its surroundings

  3. To develop scaly skin on its body to maintain moisture

  4. To migrate to long distances in the winter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chameleon can change its colour which helps the animal to camouflage itself in the presence of potential predators. Their slow movement and blending into the surrounding environment make it hard for predators to spot them. Their colour changes also help them in mating as they shift colours while communicating with other chameleons. Their colour change also depicts their reactions such as they display darker colours when empty or when under stressed environmental conditions.  Thus, the correct answer is option B.

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

Tigers and leopards have stripes on their bodies. This adaptation helps them 

  1. To keep their bodies cool

  2. To keep their bodies hot

  3. To mix with the surroundings

  4. To look beautiful
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The different types of stripes in tigers and leopards are ideal in proving camouflage to these animals according to their need. The black stripes help the animal to be hidden in the shades of the tree. The stripes on their body look like shadows as they stalk through long grasses in the moonlight. Besides being an adaptation to mix with their surroundings these stripes also act as finger prints for them as no two tigers have same type of stripes.

Thus, the correct answer is option C.