Biology · Science General

Diversity in Living Organisms

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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 true about roundworms?

  1. They are non-segmented.

  2. They are found only in the soil.

  3. They are dark coloured.

  4. Roundworms have true body cavity.

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

Roundworms are not segmented and should not be confused with the earthworms.

Multiple choice

When tail is cylindrical and ventral scales do not extend the entire width of belly, the snake is

  1. definitely poisonous

  2. can be poisonous or non-poisonous

  3. non-poisonous

  4. Deadly poisonous

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

In snake taxonomy, non-venomous snakes typically have cylindrical tails and ventral scales that do not extend across the entire belly width. This morphological characteristic is used as a preliminary field identification feature. However, this is a general guideline - exceptions exist, and expert examination of other features (head shape, eye pupils, scale arrangement) is needed for definitive identification.

Multiple choice

Which of the following statements is true for cold-blooded animals?

  1. They live in cold climatic conditions.

  2. Their body temperature is very low.

  3. They cannot regualate their body temperature.

  4. Their blood coagulates at high temperature.

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

Cold-blooded animals cannot regulate their body temperature. Some examples include Snakes, Lizards etc.

Multiple choice

What is common between Kiwi, Penguin and Ostrich?

  1. They are running birds.

  2. They are flightless birds.

  3. They are migratory birds.

  4. They have four toes.

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

Kiwi (New Zealand), Penguin (Antarctic/southern hemisphere), and Ostrich (Africa) are all flightless birds (ratites). They have reduced wing structures or vestigial wings but strong legs adapted for running. They are not all running birds, not migratory, and have varying toe configurations (ostriches have two toes, others have four).

Multiple choice

Which of the following is not an adaptation by a camel?

  1. It can live without water for many days.

  2. When water is available, it can drink up to 90 liters of water.

  3. It can live without food for many days.

  4. It can block its nostrils completely.

  5. The camel has triple rows of eyelashes.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The camel has double row of eyelashes to protect its eyes from sand and sun. Hence, this statement is incorrect as this is not an adaptation of the camel to live in desert area.

Multiple choice

Warm-blooded animals can ____________.

  1. change their body temperature according to the surroundings

  2. not reproduce

  3. live without oxygen

  4. not change their body temperature according to the surroundings

  5. survive without food
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Warm-blooded animals can change their body temperature according to the surroundings.

Multiple choice

Which of the following statements are true about elephants and humans?

A. Both are K strategists according to population ecologists. B. Elephants and humans show a long gestatation period during pregnancy. C. Elephants and humans have low basal metabolic rate (BMR). D. Both show long fertile period in their life time. E. Elephants and human show faster growth rate as compared to other animals.

  1. A, B and D

  2. B, C and D

  3. C, D and E

  4. A, B and E
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A, B and D are true of elephants and humans.  Both are K strategists according to population ecologists, i.e.,  they produce limited offsprings during their life spans. Elephants and humans show a long gestatation period during pregnancy and also show long fertile period in their life time.

Multiple choice

Which of the following statements are true about planktons?

A. They are drifting organisms. B. They have no locomotory organs. C. They may be found on the surface or in deep waters. D. They are mostly pelagic plants and animals. E. They also include some small fishes.

  1. A, B and D

  2. B and E

  3. C, D and E

  4. A, B and E
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

These are the features of planktons. They are drifting organisms having no locomotory organs and they are mostly pelagic plants