Biology ยท Science General

Diversity in Living Organisms

3,829 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

Which of the following statements is incorrect?

  1. Fish have a two-chambered heart.

  2. Frogs have a three-chambered heart.

  3. Lizards have a three-chambered heart.

  4. Pigeons have a two-chambered heart.

  5. Bats have a four-chambered heart.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as this statement is incorrect. Pigeons are warm-blooded with a four-chambered heart.

Multiple choice

Which of the following statements is false regarding movements and locomotions?

  1. Movements resulting in change of location are locomotion.

  2. All movements are locomotions and all locomotions are movements.

  3. In paramecium, cilia helps in the movement of food through cytopharynx and in locomotion as well.

  4. Hydra can use its tentacles for capturing its prey and also for locomotion.

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is the correct answer as the statement given is false. All locomotions are movements, but all movements are not locomotions. Like we use limbs for changing the body posture and locomotion as well.

Multiple choice

Why is it difficult to see the ears of birds?

  1. They don't have ears

  2. Their ears are small holes covered with feathers

  3. They have invisible ears

  4. Their ears are covered with wings
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

We cannot easily see the ears of birds because their ears are small holes covered with feathers.

Multiple choice

How do snakes hear?

  1. With external ears

  2. They feel the vibration

  3. They hear echoes

  4. They do not hear at all
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

They do not have external ears. They only feel the vibration on the ground.

Multiple choice

How do tigers mark their area?

  1. With their saliva

  2. With their solid excreta

  3. With their urine

  4. With their whiskers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tigers mark their area with their urine. A tiger can at once come to know if there is another tiger in its area by the smell of the urine.

Multiple choice

Choose the incorrect statement out of the following.

  1. Birds have different sounds for different kinds of danger.

  2. Snakes only feel the vibration on the ground.

  3. Some birds can see things from a distance of eight metres

  4. Animals can not see colours at all.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is believed that animals can see some colours in the daylight.

Multiple choice

Largest phylum of Kingdom Animalia is

  1. Arthropoda

  2. Porifera

  3. Mollusca

  4. Platyhelminthes

  5. Ctenophora
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Arthropoda is the largest phylum of Animalia, which includes insects. Over two-thirds of all named species on earth are arthropods.

Multiple choice

Which of the following is/are characteristic(s) of organisms belonging to Phylum Platyhelminthes? P. Bilaterally symmetrical, dorso-ventrally flattened and mostly unsegmented body Q. Diploblastic animals R. Well developed blood vascular system Select the correct answer using codes given below:

  1. P only

  2. P and Q only

  3. P and R only

  4. Q and R only

  5. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Out of the given characteristics, only P is correct for organisms belonging to Phylum Platyhelminthes. Bilaterally symmetrical, dorso-ventrally flattened and mostly unsegmented body is a characteristic feature of organisms belonging to Phylum Platyhelminthes.