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 is NOT a characteristic of the megafauna?

  1. Large size

  2. Herbivorous diet

  3. Long lifespan

  4. Slow reproductive rate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Megafauna were typically large in size, herbivorous, and had a slow reproductive rate, but they did not necessarily have a long lifespan.

Multiple choice

How do wolves establish and maintain their territories?

  1. By marking their territory with urine and feces

  2. By patrolling and defending their territory from intruders

  3. By forming alliances with neighboring wolf packs

  4. By migrating to new territories during different seasons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wolves mark their territory by depositing urine and feces along the boundaries, which serves as a chemical signal to other wolves to stay away.

Multiple choice

How do elephants establish and maintain their territorial boundaries?

  1. By marking their territory with dung piles

  2. By patrolling and defending their territory from intruders

  3. By forming alliances with neighboring elephant herds

  4. By migrating to new territories during different seasons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Elephants establish and maintain their territorial boundaries by marking their territory with dung piles. These dung piles serve as visual and olfactory signals to other elephants, indicating the presence of the herd and deterring potential intruders.

Multiple choice

How do dolphins communicate their territorial boundaries to other dolphins?

  1. By leaving chemical trails in the water

  2. By emitting clicks and whistles in the water

  3. By engaging in physical fights with intruders

  4. By making loud noises to deter potential intruders
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dolphins communicate their territorial boundaries to other dolphins by emitting clicks and whistles in the water. These vocalizations act as acoustic signals, guiding other dolphins and deterring them from entering the territory.

Multiple choice

What is the term used to describe the hypothetical first self-replicating molecules that may have given rise to life on Earth?

  1. Protobionts

  2. Prokaryotes

  3. Eukaryotes

  4. Replicators
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Replicators are hypothetical self-replicating molecules that are thought to have been the precursors to life on Earth.

Multiple choice

Which of these is NOT a type of extremophile organism found on Earth?

  1. Thermophiles

  2. Psychrophiles

  3. Acidophiles

  4. Mesophiles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mesophiles are organisms that thrive in moderate temperatures, while thermophiles, psychrophiles, and acidophiles are extremophiles adapted to extreme temperatures and acidic environments.

Multiple choice

Which of the following is NOT a type of animal communication?

  1. Visual

  2. Auditory

  3. Tactile

  4. Telepathic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Telepathy is not a recognized form of animal communication.

Multiple choice

Which of the following is a characteristic feature of Porifera?

  1. They possess a radial symmetry.

  2. They have a well-developed nervous system.

  3. They have a closed circulatory system.

  4. They have a digestive system with a complete gut.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Porifera exhibit radial symmetry, meaning their body parts are arranged around a central axis.

Multiple choice

Which of these is an example of a calcareous sponge?

  1. Leucosolenia

  2. Sycon

  3. Grantia

  4. Cliona
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cliona is a genus of calcareous sponges, known for their ability to bore into calcium carbonate substrates.

Multiple choice

Which type of sponge is commonly known as the 'glass sponge'?

  1. Hexactinellida

  2. Demospongiae

  3. Calcarea

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

Hexactinellida, also known as glass sponges, are characterized by their intricate skeletal structures made of silica.

Multiple choice

Which of these is a characteristic feature of the sponge Sycon?

  1. It possesses a single osculum.

  2. It has a complex canal system.

  3. It exhibits radial symmetry.

  4. It has a well-developed nervous system.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sycon is a genus of sponges that is characterized by the presence of a single osculum, which serves as the exit point for water.

Multiple choice

Which type of sponge is commonly known as the 'breadcrumb sponge'?

  1. Halichondria

  2. Spongilla

  3. Leucosolenia

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

Halichondria is a genus of sponges that is often referred to as the 'bread crumb sponge' due to its soft and crumbly texture.

Multiple choice

Which of the following is a type of sponge that is known for its ability to produce bioluminescence?

  1. Reniera

  2. Geodia

  3. Callyspongia

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

Reniera is a genus of sponges that has been found to exhibit bioluminescence, the ability to produce light.

Multiple choice

Which of these is a characteristic feature of the sponge Grantia?

  1. It possesses multiple oscula.

  2. It has a simple canal system.

  3. It exhibits bilateral symmetry.

  4. It has a well-developed digestive system.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Grantia is a genus of sponges that is characterized by the presence of multiple oscula, which serve as exit points for water.

Multiple choice

Which type of sponge is commonly known as the 'elephant ear sponge'?

  1. Spongilla

  2. Halichondria

  3. Ircinia

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

Ircinia is a genus of sponges that is often referred to as the 'elephant ear sponge' due to its large and fan-shaped appearance.