Biology · 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

To which phylum and class would a cold blooded animal that can live both in water and on land be classified?

  1. Phylum: Chordata and Class: Pisces

  2. Phylum: Invertebrata and Class: Reptilia

  3. Phylum: Chordata and Class: Amphibia

  4. Phylum: Arthropoda and Class: Arachnida
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Animals that can live both in water and on land belong to Phylum: Chordata and Class: Amphibia. They can breathe through gills and lungs. They have naked and slimy skin and they are cold blooded animals.

Multiple choice

Which of the following statements is incorrect about Pisces?

  1. Their body is covered with scales.

  2. They breathe with the help of lungs.

  3. They have a streamlined body to swim.

  4. They are cold blooded animals.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fishes belong to class Pisces. They have streamlined body that is covered with scales, and they breathe with the help of gills.

Multiple choice

Match the following organisms with their respective phylums.

1. Plasmodium i. Arthropoda
2. Leech ii. Protozoa
3. Octopus iii. Mollusca
4. Mosquito iv. Annelida

  1. 1 - (ii), 2 - (iv), 3 - (iii), 4 - (i)

  2. 1 - (i), 2 - (ii), 3 - (iv), 4 - (iii)

  3. 1 - (iv), 2 - (iii), 3 - (i), 4 - (ii)

  4. 1 - (iii), 2 - (i), 3 - (iv), 4 - (ii)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
1. Plasmodium ii. Protozoa
2. Leech iv. Annelida
3. Octopus iii. Mollusca
4. Mosquito i. Arthropoda 
Multiple choice

Why mammals and birds are called warm-blooded animals?

  1. Because their blood is warm.

  2. Because their body releases heat.

  3. Because their body maintains a particular temperature.

  4. Because their body absorbs heat from surroundings.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Birds and mammals are warm-blooded animals. That means their body maintains a particular temperature irrespective of the temperature of their surroundings.

Multiple choice

Why are humans called 'vertebrates'?

  1. As they give birth to young ones.

  2. As they have a backbone.

  3. As they are warm blooded animals.

  4. As they have lungs to respire.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Humans are called 'vertebrates' as they have a line of bones running along their back called the backbone or vertebral column.

Multiple choice

“Amongst the eukaryotes, fungi and plants are found to have plasmids, but not animals. ”Which of the following are true for the eukaryotic plasmids?

  1. In case of filamentous fungi, plasmids are frequently found in isolates of natural populations.

  2. One strain of fungi always contain a single type of plasmid only.

  3. Plasmids are inherited paternally in crosses.

  4. Circular plasmids are absent in Neurospora sp.

  5. Circular plasmids have two open reading frames (ORF).
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is true for filamentous fungi. Here the plasmids are frequently found in isolates of natural populations.