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

Which of the following is a characteristic of Arthropods?

  1. The locomotory organs of Arthropods include parapodia and chaetae.

  2. A chitinous exoskeleton is present in them.

  3. The excretory organs are nephridia.

  4. They have a closed circulatory system.

  5. Their appendages are unjointed.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option.

Multiple choice

Which of the following is not a characteristic of nonchordates?

  1. Notochord is absent in them.

  2. The central nervous system of nonchordates is hollow and dorsal.

  3. Their circulatory system is of open or closed type.

  4. Pharyngeal gill slits are absent in them.

  5. Post-anal tail is not present in nonchordates.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option.

Multiple choice

Match the following:

 
a. Mastigophora 1. Pseudopodia are chief organelles of locomotion and food catching
b. Sarcodina 2. Lack locomotory organelles
c. Sporozoa 3. Locomotory organs are flagella

  1. a - 2, b - 1, c - 3

  2. a - 1, b - 3, c - 2

  3. a - 1, b - 2, c - 3

  4. a - 3, b - 2, c - 1

  5. a - 3, b - 1, c - 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Mastigophora have locomotory organs as flagella. Sarcodina lack locomotory organelles. In Sporozoa, pseudopodia are the chief organelles of locomotion and food catching. This is a wrong option. In Sporozoa, pseudopodia are the chief organelles of locomotion and food catching.

Multiple choice

Which of the following is not a characteristic of Reptalia?

  1. The skin is non-glandular, dry and keratinised.

  2. Horny scales are present over their body surface.

  3. Their digits do not possess claws.

  4. Their heart is usually three-chambered.

  5. Fertilisation is internal.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option.

Multiple choice

Which of the following is a characteristic of Mammalia?

  1. Forelimbs are modified into wings.

  2. The body is covered with feathers and scales.

  3. Skin bears a number of sweat and oil glands.

  4. Mammary glands are absent.

  5. Bones of mammals are hollow or pneumatic.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option.

Multiple choice

Which of the following sentences about mycophages is untrue?

  1. All mycophages of higher fungi possess dsRNA.

  2. Killer system in Saccharomyces cerevisae is induced by mycophages.

  3. Cytopathic effect is not produced by mycophages in Agaricus.

  4. Some viruses of lower fungi have dsDNA.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is untrue. Mycophages do not produce cytopathic effect in many fungi.