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

What is a bacteriophage?

  1. Virus that infects bacteria

  2. Bacteria that infects virus

  3. Protozoa that infects bacteria

  4. Bacteria that infects protozoa
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A bacteriophage is a virus that specifically infects and replicates within bacteria. The term literally means 'bacteria eater'. Phages are viruses that have bacteria as their host organisms, not the other way around. This is a fundamental concept in virology and microbiology.

Multiple choice

Which of the following organisms is considered to be an intermediate form between the living and non-living?

  1. Bacteria

  2. Fungi

  3. Virus

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

Viruses are considered intermediate because they possess genetic material and can evolve like living organisms, but cannot reproduce independently without host machinery. This unique characteristics places them in a gray area between living and non-living entities. Bacteria and fungi are fully living, while vectors are merely carriers.

Multiple choice

Which feature of elephants help them to survive in hot climates?

  1. Large ears

  2. Large feet

  3. Hump

  4. Large tusk
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Elephants' large ears serve as radiators - they're thin and rich in blood vessels, allowing heat to dissipate through convection and radiation. This adaptation helps regulate body temperature in hot environments. Large feet are for weight distribution, humps are for food storage (in camels), and tusks are for defense.

Multiple choice

Which of the following correctly defines the term 'blubber'?

  1. Large flap like ears

  2. Thick layer of fat under the skin

  3. A large hump on the body

  4. Thick fur over the arctic animals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Blubber is a specialized thick layer of fat beneath the skin that provides insulation in cold marine environments. It's found in whales, seals, and polar bears. Options A and C describe other adaptive features, while D describes fur rather than fat tissue. Blubber is crucial for thermal regulation in Arctic conditions.

Multiple choice

Which feature of fennec helps it to dissipate heat?

  1. Long ears

  2. Thick fur

  3. Long tail

  4. Wide Paws
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fennec foxes have exceptionally large ears (up to 15cm) that act as radiators to dissipate excess body heat. Blood vessels in the ears release heat to the environment, helping regulate body temperature in desert conditions. Their other features like thick fur (insulation) and wide paws (walking on sand) serve different purposes.

Multiple choice

What is the mode of nutrition of Euglena?

  1. Parasitic

  2. Autotrophic

  3. Saprophytic

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are various forms of Englena. Some are parasitic and some are saprophytic. Certain species are autotrophic.