Tag: different types of classifications

Questions Related to different types of classifications

The general Agave and Yucca were once placed in two different families, Amaryllidaceous and Liliaceous respectively. However, now both these genera are transferred to the family Agavaceae because of their similarity in.

  1. Anatomy

  2. Pollen

  3. Geographical distribution

  4. Karyotypes


Correct Option: A

Which one of the following is the correct statement about the respective animal(s)? 

  1. Donkey and horse should be considered one single species because they can successfully mate and produce an offspring.

  2. Donkey and horse are two different genuses.

  3. Mule is a separate species.

  4. Mule is neither a donkey nor a horse.


Correct Option: D

The highest category in taxonomy is 

  1. Phylum

  2. Class

  3. Kingdom

  4. Species


Correct Option: C
Explanation:

  • According to the taxonomical hierarchy, the kingdom is the highest category in biological classification. It is a group of closely related organisms. 
  • Kingdom → Phylum → Class → Order → Family → Genus → Species.
  • Example: All plants have common features of the autotrophic mode of nutrition and the presence of a cell wall made up of cellulose. Hence, they belong to the kingdom Plantae.
So, the correct option is 'Kingdom'.

Three kingdom system was proposed by 

  1. Haeckel

  2. Whittaker

  3. Aristotle

  4. Mayer


Correct Option: A
Explanation:

In 1860s, the German investigator Ernst Haeckel proposed a three-kingdom system of classification. Haeckel's three kingdoms were Animalia, Plantae, and Protista. 

In Vedic times, living organisms were classified into following number of classes

  1. 2

  2. 3

  3. 4

  4. 5


Correct Option: B
Explanation:

In Vedic times, the ;living organisms were divided into the following:

1. Born from the womb (Jivagi.)
2. Born from egg (Andaja.)
3. Born from sprouts (Udbhija.)

Hence, the correct answer is option B. 

Which of the following scientist created the group Protista for both unicellular plants and animals?

  1. Haeckel

  2. Pasteur

  3. Lister

  4. Koch


Correct Option: A
Explanation:

In the year 1866, Ernst Haeckel proposed the three kingdom classification. The three kingdoms are protista, plantae and animalia. The unicellular prokaryotic organisms were placed in the group of monera. This group includes the organisms which have chloroplast and resemble plants as well as the organisms which resemble animals. The group of protists are divided into two groups as plant-like protists and animal-like protists. 

Thus, the correct answer is option A. 

Choose the correct answers from the alternatives given.
The system of plant classification proposed by Carolus Linnaeus was artificial because:

  1. he was not a naturalist

  2. his classification was based on similarities and differences in floral and other morphological characters only

  3. his classification was based on evolutionary relationships

  4. he took into account the physiological relationships along with morphological observations


Correct Option: B

_________ is the branch of science dealing with identification, nomenclature and classification of organisms.

  1. Morphology

  2. Anatomy

  3. Ecology

  4. Taxonomy


Correct Option: D
Explanation:

Taxonomy (taxis-arrangement, nomos-law) is defined as the science dealing with identification, nomenclature and classification of organisms. The term taxonomy was given by de Candolle $(1813)$.

Among the following organisms which is a completely non-parasitic form?

  1. Sea anemone

  2. Tapeworm

  3. Leech

  4. Mosquito


Correct Option: A
Explanation:

Sea anemone is not parasitic It shows mutualism with hermit crab. Tapeworm is an endoparasite while leech and mosquito are exoparasites.

Water is the second most important factor influencing life of organisms because  

  1. it makes major part of an organism's body

  2. productivity of plants depend upon availability of water

  3. life on Earth originated in water

  4. Both (a) and (b)


Correct Option: D
Explanation:

Water makes the major part of an organism's life next to temperature. It s an important factor which influences the life of organisms. The productivity and distribution of land plants are dependent upon availability of water. Water is required for growth and development of plants.