Tag: classification of organisms

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Questions Related to classification of organisms

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

Which of the following statement is false?

  1. Biological names are generally written in Latin and printed in italics.

  2. Both the words in biological name when handwritten are jointly underlined.

  3. In binomial system given by Linnaeus is being practised by biologists all over the world.

  4. In binomial system, first component a genus and second word is specific epithet.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option (B) is false.

Both the words in biological name is written in italics or underlined to denote a species that is to be denoted but not jointly underlined.

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

In structure of an ecosystem, composition of biological communities include:

  1. Rate of production

  2. Species population, biomass, distribution

  3. Rate of temperature change

  4. Light and temperatue
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The structure of an ecosystem is defined by its biotic and abiotic components. The composition of biological communities specifically refers to the species present, their population sizes, their biomass, and their spatial distribution.

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

Which statement best explains why invertebrates regenerate lost tissue more readily than most vertebrates do? 

  1. Invertebrates contain specialized cells that produce the hormones necessary for this process.

  2. Invertebrate cells exhibit a higher degree of uncontrolled cell division than vertebrate cells do.

  3. Invertebrate animals reproduce asexually, but vertebrate animals reproduce sexually.

  4. Invertebrate animals have more undifferentiated cells than vertebrate animals have.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Invertebrate animals have more undifferentiated cells than vertebrate animals have, which explains that they regenerate lost tissue more readily than most vertebrates. Invertebrates, animals without a backbone, such as an earthworm, are simpler than vertebrates, such as a human. Therefore, their cells are not as complex and they may be able to regenerate or grow lost body parts easier than a more complex animal. 
Therefore, the correct answer is option D.
Multiple choice botany taxonomy and systematic botany life introduction to plant kingdom classification of organisms

In a biological community, Gauze's principle explains.

  1. Competition among different species under unlimited resources

  2. Competitive exclusion of an inferior species due to the limited natural resources

  3. Coexistence of closely related species due to resource partitioning

  4. Intra specific competition due to limited natural resources
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gause's Competitive Exclusion Principle states that two species competing for the exact same limited resources cannot coexist indefinitely; the locally superior competitor will eventually drive the other to extinction.

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

The term Classification was coined by

  1. Theophrastus

  2. A.P.de candolle

  3. Aristotle

  4. Linnaeus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The classification term was coined by 'Theophrastus'.
  • The term taxonomy was coined by A. P. de Candolle.
  • Aristotle divided animals into two groups based on whether they have red blood or not.
  • Linnaeus proposed a binomial system of nomenclature.
  • So, the correct option is 'Theophrastus'.
Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

Classification deals with 

  1. Identification of organisms

  2. Arranging organisms into groups

  3. Arranging organisms in herbaria and museums.

  4. Naming, identification and grouping of organisms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Classification deals with the arrangement of animals and plants in taxonomic groups according to their observed similarities and differences (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species).
Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

Term vertebrate and invertebrate are given by 

  1. John Ray

  2. Linneaus

  3. Lamark

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

Lamarck, the French naturalist was the one who introduced the taxonomic distinction between vertebrates and invertebrates.
John ray was the first to give the definition of 'species'.
Carl Linnaeus gave the 'binomial nomenclature' for living beings.

Leuckart is remembered for his work in parasitology, particularly research regarding tapeworm and trichinosis. 
So, the correct answer is option C.

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

Nerve cord is in ............ position in invertebrates.

  1. Dorsal

  2. Lateral

  3. Ventral

  4. Absent
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The ventral nerve cord is a bundle of nerve fibers, typically a solid double strand (pair) of nerve cords, that runs along the longitudinal axis of some phyla of elongate invertebrates, and forms part of the invertebrate central nervous system. In most cases, this nerve cords runs ventrally, below the gut, and connects to the cerebral ganglia. Among the phyla exhibiting ventral nerve cords are nematodes (roundworms), annelids (such as earthworms, and arthropods (such as insects and crayfish).
The ventral nerve cord usually consists of a pair of partially fused nerve trunks running longitudinally along the ventral plane of the animals, from the anterior to posterior (the thoracic and abdominal tagma in the arthropods).

So, the correct answer is option A.