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

Hooves on buffalo and webbed feet on ducks are examples of

  1. structures on the same species

  2. behaviors of different species

  3. structures of different species

  4. behaviors of different species
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hooves on buffalo and webbed feet on ducks are physical structures (anatomical features) found in different species. These are not behaviors, which are actions animals perform. Hooves and webbed feet are structural adaptations that evolved in different species for different purposes.

Multiple choice

What are the vertebrate groups?

  1. Warm blooded, cold blooded

  2. Mammal, reptile, amphibian, fish, bird

  3. Animal, plant, fungus, protoctista
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vertebrates are animals with a backbone, and they are categorized into five main groups: mammals, reptiles, amphibians, fish, and birds.

Multiple choice

Which of these is an adaptation for a polar bear?

  1. It eats fish

  2. It plays during the day and sleeps at night

  3. It has thick padding on its feet

  4. It is a predator

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

Thick padding on their feet is an adaptation that helps polar bears walk on ice and snow without slipping, while also providing insulation.

Multiple choice

Which is not a characteristic of a bird?

  1. feathers

  2. laying eggs

  3. beaks

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

Birds have feathers, beaks, and lay eggs. Moist skin is a characteristic of amphibians, not birds.

Multiple choice

A specialized structure for this owl is...

  1. Talons

  2. Lungs

  3. Eats mice

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

Talons are specialized structures found on owls that allow them to grasp and hold onto prey. Lungs and hearts are internal organs common to most vertebrates, and eating mice is a behavior, not a structure.

Multiple choice

What do you call an organism that lives on dead matter?

  1. A).saprophyte

  2. B).parasite

  3. C).virus

  4. D).both b & c
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A saprophyte is an organism that lives on dead or decaying organic matter. Parasites live on living hosts. Viruses are infectious agents. The correct answer is saprophyte.

Multiple choice biology organisation of the organism introduction to cell what are the living organisms made of component of the cell

Auxospores are formed by _____________.

  1. Diatoms

  2. Dimities

  3. Deuteromycetes

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

Auxospore. In certain species of diatoms, auxospores are specialised cells that are produced at key stages in their cell cycle or life history.  Auxospores can also play a role in sexual reproduction in diatoms, and may be formed after haploid gametes fuse to form a diploid zygote.

Thus the correct option is A. 

Multiple choice biology caskets of life the cell structure cytoplasm unicellular and multicellular organisms

Choose the correct answers from the alternatives given.
Slime molds have:

  1. pseudoplasmodia

  2. feeding stages consisting of solitary, individual cells

  3. spores that develop into free-living amoeboid cells

  4. spores that develop into flagellated gametes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The haploid spores are produced from the mass by meiosis, these spores are developed or germinated into flagellated gametes. 

So, the correct option is 'spores that develop into flagellated gametes'.

Multiple choice biology caskets of life the cell structure cytoplasm unicellular and multicellular organisms

To observe Amoeba and Paramecium in a water drop, the drop was taken on a glass slide. If both the organisms were clearly seen, then the stain used must be ________.

  1. Methylene blue

  2. Iodine

  3. Safranin

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

Microorganisms can be observed under microscope using particular stain. To observe Amoeba and Paramecium in a water drop, the drop was taken on a glass slide. If both the organisms were clearly seen, then the stain used must be Methylene blue or thionin. Both these stains are LTP, that is Lipid transfer protein. They are used to observe animal cells like amoeba and paramecium through hybridization membranes like water. This stain makes the nucleus of amoeba and paramecium visible under microscope.

Thus, the correct answer is 'Methylene blue.'

Multiple choice biology caskets of life the cell structure cytoplasm unicellular and multicellular organisms

Choose the correct answers from the alternatives given.
Which one of the following protists is not correctly linked to the type of movement it shows?

  1. Amoeboids-pseudopodia

  2. Ciliates-cilia

  3. Zooflagellates-flagella

  4. Sporozoa-flexing the pellicle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sporozoa do not have flagella, cilia, or pseudopodia and they show gliding movement, amoeboids show movement by pseudopodia, ciliates by cilia and zooflagellates show by flagella, the pellicle is shown by paramecium.

So, the correct option is 'Sporozoa-flexing the pellicle'.

Multiple choice zoology tissue level of organisation specialized cells in animals tissues and types of tissues levels of organisation in animals

From the list of characters given. Choose the characteristic which are exclusive to birds.
(a) Pneumatic bones
(b) Lungs with air sacs
(c) Four chambered heart
(d) Homoithermy
(e) Feathers
(f) Scales
(g) Crop and gizzard.

  1. (a), (b), (d), (e) & (g)

  2. (a), (b) & (e)

  3. (a), (b)

  4. (e) only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Birds are characterized by pneumatic (hollow) bones, lungs with air sacs for efficient respiration, four-chambered hearts, homeothermy (warm-bloodedness), feathers, and a crop/gizzard for digestion. Scales are generally found on the legs of birds, but are not exclusive to them (reptiles also have scales).

Multiple choice zoology structural organization in living organisms specialized cells in animals tissues and types of tissues levels of organisation in animals

Choose the correct answers from the alternatives given.
Which one of the following is not a characteristic of animals?

  1. Heterotrophic

  2. Diplontic life cycle

  3. Have contracting fibres

  4. Single cells or colonial
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

So, the correct option is 'Single cells or colonial'.

Multiple choice temperature control homeostasis coordination and response biology

Animals with built-in thermostat are 

  1. Biothermic

  2. Oliogothermic

  3. Poikilothermic

  4. Homeothermic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Homeothermy or homeothermy is thermoregulation that maintains a stable internal body temperature regardless of external influence.
  • Hypothalamus is the built-in thermostat present in the homeothermic animal's body.
  • The hypothalamus controls the body's responses to the outside temperature. When you get hot, you sweat.
  • Hence Animals with built-in thermostat are Homeothermic.
  • So,  the correct answer is 'Homeothermic'.