Biology · Science General

Diversity in Living Organisms

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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 zoology classification of living beings hierarchy of classification different types of classifications introduction to classification of living organisms

Organisms are classified into different kingdoms on the basis of 

  1. Reproduction

  2. Metabolism

  3. Cell structure

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

Living organism are classified on the basis of : Type of cell whether uni or  multi cellular, the way they reproduce, their genetic code, their growth and development, how do they metabolise, how do they respond to a stimulus, maintaining homeostasis and how do they evolve.

Multiple choice biology classification of living beings hierarchy of classification different types of classifications introduction to classification of living organisms

Which of the following is a drawback of four-kingdom classification given by Copeland?

  1. There was no separate kingdom for prokaryotes

  2. Fungi was included in plantae

  3. Fungi was included in animalia

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Copeland proposed the four kingdom classification. He grouped all living organisms into four kingdoms, namely Kingdom Monera, Kingdom protista, Kingdom Metaphyta(Plantae) and Kingdom Metazoa(animalia).
He  included fungi in plantae despite being heterotrophic and having chitinous cell wall.
So, the correct option is 'Fungi was included in plantae'.
Multiple choice biology classification of living beings hierarchy of classification different types of classifications introduction to classification of living organisms

Which of the following is a drawback of two kingdom classification?

  1. Viruses have no protoplasm

  2. Fungi differ in structure and physiology

  3. Lichens are dual organisms (Plants+Fungi)

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

Two kingdom classification have only two kingdoms Plantae and animalia. Which was not able to explain viruses, fungi and lichens etc. 

Multiple choice evolutionary changes in heart transportation - the circulatory system

Which aortic arch is absent in a frog?

  1. 1$^{st}$, 2 and 5 th

  2. 3rd and 4th

  3. 3rd, 4th and 5th

  4. 5th and 6th
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Since in frogs larva changes into adult by undergoing metamorphosis and for this gills are lost. Thus with the loss of gills, first, second and fifth aortic arches also disappear and only three aortic arches remain functional- carotid arch, systemic arch and pulmonary arch. 

Multiple choice evolutionary changes in heart transportation - the circulatory system

Which of the following vertebrates were the first to evolve a three chambered heart for proper distribution of oxygen in the body?

  1. Fishes

  2. Reptiles

  3. Amphibians

  4. Birds

  5. Mammals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. Fishes have two-chambered heart having one auricle and one ventricle.
B. Reptiles have three-chambered heart having two auricles and one ventricle.
C. Amphibians have three-chambered heart having two auricles and one ventricle.
D. Birds have four-chambered heart having two auricles and two ventricles.
E. Mammals have four-chambered heart having two auricles and two ventricles.
Hence, the amphibians were the first to evolve a three-chambered heart for proper distribution of oxygen in the body.
So, the correct answer is 'Amphibians'.
Multiple choice biology introduction to microbiology food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms commercial use of microorganism microbes in household and industry

Which of the following statement is correct?

  1. Paramoecium and Plasmodium belong to same kingdom as that of Penicillium.

  2. Lichen is a composite organism formed from symbiotic association of an alga and a protozoan.

  3. Yeast used in making beer and bread is a fungus.

  4. Nostoc and Anabaena are examples of protista.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yeast is a fungal species that converts carbohydrates to carbon dioxide and alcohols. Saccharomyces cerevisiae is responsible for the production of ethyl alcohol.

So, the correct answer is 'Yeast used in making beer and bread is a fungus'.

Multiple choice biology micro organisms food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Which of the following grows in the form of multicellular filaments? 

  1. Bacteria

  2. Mould

  3. Amoeba

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

(A)Bacteria grows in the form of colonies.

(B)Mould grows in the form of filaments.
(C)Amoeba has a definite irregular shape growth.
So, the correct answer is 'Mould'

Multiple choice bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

Cell wall is absent in the cell of __________

  1. Mushroom

  2. Moss

  3. Fern

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

The cell wall are present in the cells of plants, fungal and other organisms. The animal cells lack the cell wall. The mosquitoes have cells with the cell membrane and there is no cell wall. 

Thus, the correct answer is 'Mosquito'.

Multiple choice biology plant taxonomy life introduction to plant kingdom classification of organisms

Choose the correct answers from the alternatives given.
Which of the following kingdoms contains primarily multicellular, larger-celled, photosynthetic    organisms?

  1. Animalia

  2. Plantae

  3. Archaea

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

Kingdom Plantae includes all eukaryotic chlorophyllous autotrophic organisms that do photosynthesis and are multicellular with large sized cells.

Hence, the correct answer is 'Plantae'.

Multiple choice botany taxonomy and systematic botany life introduction to plant kingdom classification of organisms

Which one of the following statements is incorrect about the occurrence of notochord?

  1. It is present only in larval tail in ascidian.

  2. It is replaced by a vertebral column in adult frog.

  3. It is absent throughout life in humans from the very beginning.

  4. It is present throughout life in Amphioxus.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Humans belong to the Phylum Chordate. Animals belonging to the Phylum Chordata possess a notochord either during early embryonic life or throughout the embryonic life. In some, it Is replaced by vertebral column. In humans, notochord is present only In the embryonic stage, it is replaced by vertebral column in the adult form.

Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

Which of the following are not the trends observed in the evolution of the central nervous system in invertebrates?

  1. Increased size of cerebral ganglia and formation of a 'brain'

  2. Reduction in the number of nerve cords

  3. Replacement of nerve cords by nerve nets

  4. Dominance of the ventral pair of nerve cords
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The nervous system of animals has evolved a lot from metazoans to mammals. Cnidarians happen to have the simplest nervous system comprising mainly nerve nets. It is assumed that this is the group of animals that the modern nervous system has evolved from. Hence, it can be said that nerve nets have been replaced by nerve nets and not the other way around.

So, the correct answer is 'Replacement of nerve cords by nerve nets'.