Biology ยท Science General
Diversity in Living Organisms
3,323 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
How do elephants establish and maintain their territorial boundaries?
-
By marking their territory with dung piles
-
By patrolling and defending their territory from intruders
-
By forming alliances with neighboring elephant herds
-
By migrating to new territories during different seasons
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.
How do dolphins communicate their territorial boundaries to other dolphins?
-
By leaving chemical trails in the water
-
By emitting clicks and whistles in the water
-
By engaging in physical fights with intruders
-
By making loud noises to deter potential intruders
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.
Which of the following is NOT a type of animal communication?
-
Visual
-
Auditory
-
Tactile
-
Telepathic
D
Correct answer
Explanation
Telepathy is not a recognized form of animal communication.
Which animal uses visual signals to communicate?
-
Firefly
-
Peacock
-
Cuttlefish
-
All of the above
D
Correct answer
Explanation
Fireflies, peacocks, and cuttlefish all use visual signals to communicate.
Which of the following is a characteristic feature of Porifera?
-
They possess a radial symmetry.
-
They have a well-developed nervous system.
-
They have a closed circulatory system.
-
They have a digestive system with a complete gut.
A
Correct answer
Explanation
Porifera exhibit radial symmetry, meaning their body parts are arranged around a central axis.
Which of these is an example of a calcareous sponge?
-
Leucosolenia
-
Sycon
-
Grantia
-
Cliona
D
Correct answer
Explanation
Cliona is a genus of calcareous sponges, known for their ability to bore into calcium carbonate substrates.
Which type of sponge is commonly known as the 'glass sponge'?
-
Hexactinellida
-
Demospongiae
-
Calcarea
-
Sclerospongiae
A
Correct answer
Explanation
Hexactinellida, also known as glass sponges, are characterized by their intricate skeletal structures made of silica.
Which of these is a characteristic feature of the sponge Sycon?
-
It possesses a single osculum.
-
It has a complex canal system.
-
It exhibits radial symmetry.
-
It has a well-developed nervous system.
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.
Which type of sponge is commonly known as the 'breadcrumb sponge'?
-
Halichondria
-
Spongilla
-
Leucosolenia
-
Cliona
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.
Which of the following is a type of sponge that is known for its ability to produce bioluminescence?
-
Reniera
-
Geodia
-
Callyspongia
-
Suberites
A
Correct answer
Explanation
Reniera is a genus of sponges that has been found to exhibit bioluminescence, the ability to produce light.
Which of these is a characteristic feature of the sponge Grantia?
-
It possesses multiple oscula.
-
It has a simple canal system.
-
It exhibits bilateral symmetry.
-
It has a well-developed digestive system.
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.
Which type of sponge is commonly known as the 'elephant ear sponge'?
-
Spongilla
-
Halichondria
-
Ircinia
-
Leucosolenia
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.
Which of these is a characteristic feature of the sponge Leucosolenia?
-
It possesses a single osculum.
-
It has a complex canal system.
-
It exhibits bilateral symmetry.
-
It has a well-developed nervous system.
A
Correct answer
Explanation
Leucosolenia is a genus of sponges that is characterized by the presence of a single osculum, which serves as the exit point for water.
Which type of sponge is commonly known as the 'red beard sponge'?
-
Spongilla
-
Halichondria
-
Cliona
-
Dysidea
D
Correct answer
Explanation
Dysidea is a genus of sponges that is often referred to as the 'red beard sponge' due to its reddish-brown color and beard-like appearance.
Which of these is a characteristic feature of the sponge Suberites?
-
It possesses multiple oscula.
-
It has a simple canal system.
-
It exhibits bilateral symmetry.
-
It has a well-developed digestive system.
A
Correct answer
Explanation
Suberites is a genus of sponges that is characterized by the presence of multiple oscula, which serve as exit points for water.