Biology · 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

Multiple choice biology living world and classification of microbes modern classification system traditional method of animal classification salient features of five kingdoms classification hierarchy hierarchy of classification

Which one of the following does not find a heterotrophs place in five kingdom system of classification?

  1. Bacteria

  2. Lichens

  3. Cyanobacteria

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

Viruses are considered to be acellular as they do not have a defined cell wall, cell membrane, nucleus or nucleoid, cytoplasm and cellular organelles. For this reason, they cannot perform their metabolic activities on their own and are obligately dependent on the host cell machinery. Therefore, they do not find a place in the five-kingdom classification system. 

A. Bacteria are classified under Kingdom Monera as they have a prokaryotic cell.
B. Lichens are grouped under Kingdom Fungi.
C. Cyanobacteria are photosynthetic prokaryotes grouped under Kingdom Monera.
D. No kingdom is ascribed to the viruses.
Hence, the correct answer is 'Viruses'

Multiple choice biology systematics of living world modern classification system traditional method of animal classification salient features of five kingdoms

Living things are divided into .......... kingdoms.

  1. 4

  2. 3

  3. 5

  4. 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Very early on, scientists began grouping the living organisms under different categories. Some biologists classified organisms into plants and animals. Ernst Haeckel, Robert Whittaker, and Carl Woese are some biologists who attempted a broader system of classification. Amongst these, the Five Kingdom Classification proposed by Robert Whittaker stood out and is widely used. It consists of  Monera, Protista, Fungi, Plantae and Animalia
So, the correct answer is '5'
Multiple choice biology systematics of living world modern classification system traditional method of animal classification salient features of five kingdoms

The classification given by Whittaker includes which of the following kingdoms?

  1. Monera

  2. Protista

  3. Animalia

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct answer is 'all of the above'

The classification by Robert Whittaker divides the living world into 5 kingdoms which are Monera,Protista,Plantae,Animalia and Fungi.

Multiple choice biology living world and classification of microbes modern classification system traditional method of animal classification salient features of five kingdoms

Which of the following is the most commonly used classification scheme?

  1. Linnaeus, five kingdom scheme

  2. Whittaker, five kingdom scheme

  3. Darwin, five kingdom scheme

  4. Hooke, five kingdom scheme
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
R.H. Whittaker proposed the five kingdom classification in the year 1969. It is the modern or latest classification system of organisms which is most commonly used. It classifies the organisms in the groups Monera, Protista, Fungi, Plantae and Animalia. The classification is performed on the basis of the structure of cell, complexity of organisms, mode of nutrition and phylogenetic relationship.
Thus, the correct answer is option B.
Multiple choice biology living world and classification of microbes modern classification system traditional method of animal classification salient features of five kingdoms

Choose the incorrect match from the following in Whittaker's classification.

  1. Archeae - Monera

  2. Diatoms - Protista

  3. Lichens - Fungi

  4. Green algae - Plantae
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A lichen is not a single organism, but the result of a partnership (mutualistic symbiosis) between a fungus and an alga or cyanobacteria. So they are not particularly classified under one single kingdom because it consists of two or more mutualistic symbiotic organisms.
So the correct option  is 'Lichens -fungi'.
Multiple choice botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

Single cell protein can be obtained from 

  1. Bacteria

  2. Algae

  3. Fungi

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Single cell protein means the protein which can be obtained by the culture of single-celled organisms and these proteins are generally used as dietary supplements. Bacteria, algae, fungus all of them are either single-celled structures or the groups have one or more forms which are single-celled. Thus, all of them form sources of single-celled protein.

So, the correct answer is 'All of the above'.

Multiple choice evs a snake charmer's story snakes snakes and snake charmers uses of animals

The snake smell by using

  1. Skin

  2. Tongue

  3. Scales

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

Snakes have vomeronasal organs on the top of their mouths that recognise smells and tongue helps them do so.

The skin or scales do not have any such receptors hence they do not contribute in detection of smell.
So the correct answer is 'Tongue'. 

Multiple choice zoology excretion in living organisms excretion - animals human excretory system and products excretory system and products excretion - plants excretion in plants

Which one of the following statements is incorrect? 

  1. Birds and land snails are uricotelic animals.

  2. Mammals and frogs are ureotelic animals.

  3. Aquatic amphibians and aquatic insects are ammonotelic animals.

  4. Birds and reptiles are urotelic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In Uricotelic organisms, the end product of nitrogen metabolism is uric acid.  include terrestrial arthropods (including insects), lizards, snakes, and birds. 

So, the correct option is 'Birds and reptiles are urotelic'. 

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Which one of the following can respire in total absence of air (anoxybiosis)?

  1. Amoeba

  2. Bed bug

  3. Hydra

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

Tapeworms live in the human gut and can be up to 9 meters long. Parasites have specific features which enable them to survive in or on their host. They use anaerobic respiration, so that they can survive without oxygen.

Multiple choice zoology earthworm earthworm - reproductive system reproduction in earthworm introduction to reproduction

In Pheretima, the dorsal surfaces is marked by a mid dorsal line, whereas the ventral surface is distinguish the present of

  1. Dorsal blood vessels

  2. Genital pores

  3. Absence of setae

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

Genital pores for both male and female organs are present on the ventral side of the earthworm. Also, setae are present on the ventral side.

So, the correct option is 'Genital pores'.

Multiple choice zoology earthworm earthworm - reproductive system reproduction in earthworm introduction to reproduction

A biology student has to distinguish the anterior and posterior end of Pheretima morphologically. For it, he can observe/ locate

  1. Parapodia

  2. Eyes

  3. Clitellum

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

The anterior region of Pheretima consists of a thick, saddle-like ring found in the epidermis known as Clitellum This structure is easily visible with naked eyes hence a person can easily distinguish the anterior and posterior end of pheretima.

So the correct answer is 'Clitellum'.

Multiple choice zoology earthworm earthworm - reproductive system reproduction in earthworm introduction to reproduction

Which of the following is marine leech?

  1. Haemadipsa

  2. Bonellia

  3. Hirudinaria

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

Leech belongs to phylum Annelida. The 'green spoonworm' (Bonellia viridis) lives in a marine habitat. It shows sexual dimorphism. It is also known as the biocidal properties of a pigment in its skin. It is found in the north-eastern Atlantic, Indian and Pacific Oceans and the Mediterranean and Red seas. It is pale- to dark-green in colour, with a 15 cm long, round or sausage-shaped body. Hence, option B is correct.

Multiple choice zoology earthworm earthworm - reproductive system reproduction in earthworm introduction to reproduction

Choose the correct answers from the alternatives given.
Flukes and tapeworms:

  1. show cephalization

  2. have well-developed reproductive systems

  3. have well-developed nervous systems

  4. have a tube-within-a-tube body plan
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tapeworm and fluke worms belong to class Platyhelminthes. They both are having well developed reproductive systems.

So the correct answer is "have well-developed reproductive systems".