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 zoology diversity in living world hemichordata phylum hemichordata chordates and hemichordates

The correct classification of Balanoglossus is

  1. Chordata $\rightarrow$ Vretebrata $\rightarrow$ Enteroneusta
  2. Chordata $\rightarrow$ Vretebrata $\rightarrow$ Pterobranchia
  3. Chordata $\rightarrow$ Hemichordata $\rightarrow$ Pterobranchia
  4. Chordata $\rightarrow$ Hemichordata $\rightarrow$ Enteropneusta
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Balanoglossus is an ocean-dwelling acorn worm, it is an "evolutionary link" between invertebrates and vertebrates. It belongs to chordates, phylum Hemichordata and order Enteropneusta.

So, the correct answer is option D.

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

Choose the correct answers from the alternatives given.
In defining fungi, which of the following is not a correct contrasting statement?

  1. Animals are heterotrophic by ingestion while fungi are heterotrophic by absorption

  2. Plants have cell walls of cellulose; fungi have cell walls of chitin

  3. Energy reserve of fungi.is starch while the energy reserve of animals is glycogen

  4. Fungi lack flagella at all stages of their life while most protists have a stage that possesses flagella
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Reserve food material in all the fungi is glycogen and oil but not starch. 

So, the correct option is 'Energy reserve of fungi.is starch while the energy reserve of animals is glycogen'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

In foggy and hazy environment, birds are able to locate position of sun and their path by means of

  1. Infra-red wavelength

  2. Ultra-violet radiations

  3. Magnetic system

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

In foggy and hazy environment, the visible spectrum of the sun is not able to penetrate and so, humans find it difficult to visualize. However, the UV-A can penetrate through the fog, which cannot be detected by human eyes as t falls behind the visible spectrum of VIBGYOR. Birds are capable of recognizing more colors than the humans, they can detect the UV rays as well that allows them to navigate in the foggy and hazy conditions as well. These also allow the birds to track their migratory routes.

Hence, the correct answer is 'Ultra-violet radiations'.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Migration in birds is guided in part by-

  1. Celestiial navigation

  2. Temperature chnages

  3. Territorial aggression

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

Birds that nest in the Northern Hemisphere tend to migrate northward in the spring to take advantage of burgeoning insect populations, budding plants and an abundance of resting locations. This is guided by celestial navigation with a sextant.

So, the correct option is 'Celestial navigation'.

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Which of the following can be made into crystal form?

  1. Algae

  2. Amoeba

  3. Virus

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

Viruses can be made into a crystalline form. TMV became the first virus to be crystallized in 1935. One crystal of viruses consists of thousands of viruses. The crystallization of viruses was first done by Stanley. Algae, Amoeba and Sperm cannot be crystallised.

The correct answer is C.

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

The organisms which display properties of both living and nonliving are

  1. Viruses

  2. Diatoms

  3. Lichens

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

Virus is the microorganisms which have properties of living and non-living both. They have a specific structure which consists of head and tail. Head is composed of several protein units known as capsomeres which enclose the genetic material made up of RNA or DNA. They have a lipid envelope derived from the host cell membrane which lies outside the capsomere. They occur in crystalline form outside the body of the host but as it enters the host cell it injects its genetic material which replicates vigorously. The replicated materials are further packed in the new protein coat formed using host protein and is thrown out by the lysis of cell membrane.

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?

  1. Monera

  2. Protista

  3. Fungi

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Viruses are non-cellular organisms and replicate only when they infect the host cell. 

Viruses belong to none of these. Option D.

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Which of the following is the characteristic feature that distinguishes an algae from fungi?

  1. Heterotrophic

  2. Autotrophic

  3. Parasitic

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

The algae posses the chlorophyll pigments in the cells which allow these organisms to prepare the food by the process of photosynthesis. They are autotrophic because they can prepare the food on their own. The fungi are the heterotrophic or saprophytic organisms as they do not possess the chlorophyll pigments. They cannot prepare the food and depend on the other sources for food. 

Thus, the correct answer is option B. 

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Which of the following microorganism is autotrophic in nature?

  1. Algae

  2. Bacteria

  3. Fungi

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

An organism that is capable of synthesizing its own food from inorganic substances using light or chemical energy is called as autotrophic organism. It includes green plants, algae and certain bacteria. Algae are photoautotrophs meanings they use light as the source of energy to prepare their food.

Thus, the correct answer is option A. 

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Which of the following statements is true about viruses?

  1. Viruses are filterable facultative parasites

  2. Viruses are capable of performing metabolic activities on their own

  3. All viruses known to man are facultative parasites

  4. Some viruses have cellular structure and are saprophytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Viruses are obligate filterable parasites capable of independent existence and when they enter inside the body of the host they start utilising the host machinery for its own reproduction. 

Thus, the correct answer is option A. 

Multiple choice biology micro organisms non cellular organism : virus world of virus bacteria - introduction, shape and structure

Which of the following is a microscopic plant?

  1. Algae

  2. Fungi

  3. Bacteria

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

Algae are single-celled, aquatic, microscopic plants. As they can make their own food, they are considered as plants. They contain photosynthetic pigment, chlorophyll-like plants. However, they do not have root, leaves and stems, unlike plants.

Thus, the correct answer is 'Algae'.

Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

Plant and animal cells are  .......... cells. 

  1. Eukaryotic

  2. Prokaryotic

  3. All are prokaryotic with few eukaryotes

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

Plant and animal cells are both eukaryotic cells, so they have several features in common, such as the presence of a nucleus with nuclear membrane and membrane-bounded organelles. 80S ribosomes are present in both the type of cell.

So, the correct answer is option A.

Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

................  are found in eukaryotes, but not in prokaryotes.

  1. Ribosomal RNA

  2. Plasma membrane

  3. Nuclear membrane

  4. Ribosomes

  5. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Eukaryotic cells differ from prokaryotic cells in having a eukaryon or an advanced nucleus having a nuclear membrane. The prokaryotic cells have a primitive nucleus without a nuclear membrane, where the nuclear material lies freely in the cytoplasm in the nucleoid region.
Thus, the correct answer is option 'Nuclear membrane'.
Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

Which one of the following organisms is not an eukaryote?

  1. Paramecium caudatum

  2. Escherichia coli

  3. Euglena viridis

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

Eukaryotes are the organisms which have membrane-bound cell organelles as well as membrane-bound nucleus. All the kingdoms except kingdom monera possess eukaryotes.

Paramecium caudatum and Amoeba proteus are the protozoans belonging to kingdom Protista. So, they are eukaryotes.
Euglena viridis also belongs to kingdom Protista. It is a protistan algae.
Escherichia coli is not a eukaryote. It is a gram -ve bacteria belonging to kingdom Monera. Monera is a kingdom of prokaryotes. They do not have membrane-bound organelles and an organised nucleus.

Multiple choice bio-chemistry unit of living - cell eukaryotic cell kinds of cell introduction to eukaryotic cell

Select the correct pair in which one is a prokaryote, whereas the other is a eukaryote.

  1. Cyanobacteria and algae

  2. Algae and fungi

  3. Mosses and ferns

  4. Ferns and gymnosperms

  5. Gymnosperms and angiosperms
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The prokaryotic cell is the cell devoid of nuclear membrane and membrane-bound organelles whereas eukaryotic cell has membrane bound nucleus and organelles. Cyanobacteria are the prokaryotic microscopic organism (kingdom Monera) while algae, fungi, mosses, fern and spermatophytes (angiosperms and gymnosperms) are eukaryotes.
So, the correct answer is option A.