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 general knowledge science & technology

human belong to which category

  1. cold blooded animal

  2. warm blooded animal

  3. both since it depend upon environment

  4. no such concept exist
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Humans are warm-blooded (endothermic) animals, meaning we maintain a nearly constant internal body temperature regardless of the environmental temperature. Cold-blooded animals (ectotherms) rely on external heat sources.

Multiple choice general knowledge science & technology

A reptile is a vertebrate animal with a body covered in tough scales

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reptiles are indeed vertebrates (they have backbones) characterized by dry, tough scales covering their skin. This distinguishes them from amphibians (which have smooth, moist skin) and fish (which have scales but are aquatic). Examples include snakes, lizards, turtles, and crocodiles. This is a correct statement.

Multiple choice general knowledge science & technology

Which is the following microorganism which was discovered by Dimitry Ivanowsky?

  1. Bacteria

  2. Virus

  3. Bacteriophage

  4. Cyanobacteria
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dmitry Ivanovsky discovered viruses in 1892 while studying tobacco mosaic disease. He found that the infectious agent could pass through filters that trapped bacteria, leading to the discovery of a new class of microorganisms smaller than bacteria - viruses.

Multiple choice general knowledge science & technology

Which is the following microorganism said to be evolved first?

  1. Brown Algae

  2. Green Algae

  3. Red Algae

  4. Blue Green Algae
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blue-green algae (cyanobacteria) are considered the most evolutionarily primitive because they were among the first photosynthetic organisms on Earth, appearing around 3.5 billion years ago. They produced oxygen through photosynthesis and fundamentally changed Earth's atmosphere.

Multiple choice general knowledge

A rat can last longer without water than a camel.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The statement is true - rats can survive longer without water than camels. While camels are famous for desert survival, they can typically go about 6-7 days without water. Rats are remarkably resilient and can survive approximately 2-4 weeks without water due to their efficient metabolism and ability to extract moisture from food.

Multiple choice general knowledge

Camel uses its hump for

  1. Storing water

  2. Storing fat

  3. Balancing the body during walking in desert sand

  4. Temperature regulation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Camels store fat, not water, in their humps. This fat provides energy when food is scarce. The hump also helps with heat dissipation.

Multiple choice general knowledge science & technology

Which of these choices do not have basic cell structures?

  1. Neurons

  2. Viruses

  3. Genetic Plant Cells

  4. Amoeba
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Viruses are acellular entities that lack basic cell structures such as a nucleus, cytoplasm, cell membrane, and organelles. They consist only of genetic material enclosed in a protein coat and cannot reproduce without a host cell. Neurons, plant cells, and amoeba all possess fundamental cellular components.

Multiple choice general knowledge science & technology

Scientists believe that birds may have developed from...

  1. Amphibians

  2. Dinosaurs

  3. Mammals

  4. Arthropods
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Birds evolved from theropod dinosaurs during the Jurassic period, specifically from the maniraptoran group. This evolutionary relationship is supported by numerous fossil discoveries including Archaeopteryx and many feathered dinosaur species. Birds share anatomical features with dinosaurs including hollow bones, wishbones, and scaled legs.

Multiple choice general knowledge science & technology

Birds can regulate their own body temperature. Scientists say they are..

  1. Endothermic

  2. Exothermic

  3. Ectothermic

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Birds are endothermic, meaning they generate internal heat through metabolic processes to maintain a constant body temperature regardless of environmental conditions. This contrasts with ectothermic animals like reptiles that rely on external heat sources. 'Endothermic' literally means 'heat from within.'

Multiple choice general knowledge

What is the locomotion in Amoeba called?

  1. Mobility through Locomotive vacuole

  2. Mobility through food vacuole

  3. Podial movement

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

Amoebae move through pseudopodial movement, extending temporary projections of their cytoplasm called pseudopods ('false feet'). This allows them to move toward food and engulf it through phagocytosis. The other options are not correct terminology for amoeba locomotion.

Multiple choice general knowledge

Algae are microscopic organisms...

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Algae are not all microscopic - some like kelp can grow to over 50 meters in length. Algae is a diverse group of organisms spanning multiple kingdoms including protists, cyanobacteria, and even some plants. The claim that they are all microscopic is therefore incorrect.

Multiple choice general knowledge

Snakes that are active in daytime generally have round pupils. What about snakes that come out at night? They have

  1. horizontal pupils

  2. no pupils

  3. vertical pupils

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

Snakes that are primarily nocturnal (night-active) typically have vertical slit-shaped pupils. This vertical pupil structure allows for better light control and enhances night vision by controlling light intake more precisely than round pupils. Daytime snakes usually have round pupils because they don't need this specialized light-gathering adaptation.

Multiple choice general knowledge science & technology

Reptiles, like lizards, are cold-blooded. This means:

  1. They don't have feelings.

  2. They don't hibernate.

  3. Their blood stays cold even when it's hot outside.

  4. They need heat from the sun to keep them warm.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cold-blooded (ectothermic) animals like reptiles cannot generate their own body heat internally. They rely on external heat sources like the sun to warm their bodies and become active.