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
Which of the following is NOT a type of microorganism?
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Bacteria
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Archaea
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Fungi
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Protozoa
C
Correct answer
Explanation
Fungi are not microorganisms.
Which of the following is NOT a type of microorganism that can be found in the human body?
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Bacteria
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Archaea
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Fungi
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Protozoa
D
Correct answer
Explanation
Protozoa are not found in the human body.
Which species is known for its unique ability to change its skin color and texture to match its surroundings?
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Chameleon
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Octopus
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Cuttlefish
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Tree frog
A
Correct answer
Explanation
Chameleons are known for their ability to change their skin color and texture to match their surroundings, which helps them camouflage themselves from predators and prey.
Which species is known for its unique ability to regenerate lost limbs?
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Starfish
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Salamander
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Crab
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Octopus
A
Correct answer
Explanation
Starfish are known for their ability to regenerate lost limbs, which helps them survive injuries and predators.
Which of the following is NOT a recommended technique for birdwatching?
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Using binoculars or a spotting scope
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Making loud noises to attract birds
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Dressing in camouflage clothing
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Remaining quiet and still
B
Correct answer
Explanation
Making loud noises can disturb birds and disrupt their natural behavior. Birdwatchers should aim to minimize their impact on the environment and observe birds in a respectful manner.
Which of the following is an example of an exaptation that has been co-opted for cognitive function?
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The use of language by humans
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The use of tools by chimpanzees
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The use of echolocation by bats
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All of the above
A
Correct answer
Explanation
The use of language by humans is an example of an exaptation that has been co-opted for cognitive function. Language evolved as a way to communicate with others, but it has also been co-opted for a variety of other cognitive functions, such as planning, problem-solving, and decision-making.
Which of the following is NOT a physical adaptation humans have made to desert environments?
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Darker skin
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Increased sweating
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Larger lungs
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Smaller body size
C
Correct answer
Explanation
Humans have not evolved larger lungs to adapt to desert environments.
Which of the following is a behavioral adaptation humans have made to desert environments?
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Wearing loose-fitting clothing
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Avoiding midday sun exposure
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Conserving water
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All of the above
D
Correct answer
Explanation
Wearing loose-fitting clothing, avoiding midday sun exposure, and conserving water are all behavioral adaptations humans have made to desert environments.
A biologist examines a rare species of bird and notices a unique coloration on its feathers. What might this coloration indicate?
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A sign of adaptation to a specific habitat
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A warning signal to potential predators
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A display of sexual attractiveness to mates
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A camouflage mechanism to blend with the surroundings
C
Correct answer
Explanation
The biologist's observation of the unique coloration on the bird's feathers suggests that it may be a display of sexual attractiveness intended to attract mates.
Which of the following is a characteristic of all animals?
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They are multicellular.
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They are heterotrophic.
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They can move.
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They have a nervous system.
B
Correct answer
Explanation
All animals are heterotrophic, meaning they must obtain their energy from other organisms.
Which of the following is a characteristic of all vertebrates?
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They have a backbone.
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They have a closed circulatory system.
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They have a muscular system.
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They have a nervous system.
A
Correct answer
Explanation
The defining characteristic of vertebrates is that they have a backbone.
Which of the following is a characteristic of all mammals?
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They have fur or hair.
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They give birth to live young.
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They produce milk to feed their young.
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They have a diaphragm.
A
Correct answer
Explanation
The defining characteristic of mammals is that they have fur or hair.
Which of the following is a characteristic of all birds?
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They have feathers.
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They lay eggs.
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They have a beak.
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They have a crop.
A
Correct answer
Explanation
The defining characteristic of birds is that they have feathers.
Which of the following is a characteristic of all fish?
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They live in water.
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They have gills.
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They have fins.
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They have a swim bladder.
A
Correct answer
Explanation
The defining characteristic of fish is that they live in water.
Which of the following is NOT a marine animal commonly found in coral reefs?
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Sea Turtle
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Dolphin
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Shark
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Penguin
D
Correct answer
Explanation
Penguins are not typically found in coral reef ecosystems, as they are adapted to colder climates and are more commonly associated with polar regions.