Tag: living world and classification

Questions Related to living world and classification

The organism made up of many cells are known as 

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Acellular

  2. Unicellular

  3. Multicellular

  4. None of the above

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Correct Option: C
Explanation:

The living organisms are composed of cells which forms the structural and functional unit of the life forms. Some of the animals are composed of only one cell which forms the complete body are known as unicellular. Some of the animals are composed of many cells which form tissues and organs are known as multicellular. 

Thus, the correct answer is option C. 

Which of the following is a non-living thing? 

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Table

  2. Flower

  3. Horse

  4. Seed

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Correct Option: A
Explanation:

Flower, horse and seed are made up of cells and are capable of growth and development. Table lack the property of growth and development. Therefore, table is a nonliving thing.

Select the option which arranges the given organisms in ascending order of their life span.

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. $Parrot < Crow < Butterfly < Banyan\ tree$

  2. $Butterfly < Crow < Parrot < Crocodile$

  3. $Fruit fly < Crocodile < Parrot < Banyan\ tree$

  4. $Parrot < Tortoise < Dog < Crow$

Show answer
Correct Option: C
Explanation:

Under adequate and favourable conditions, the lifespan of a

  • Fruit fly is 40-50 days.
  • Crocodile is nearly 70-100 years, depending on the species.
  • Parrot is from 50-95 years, depending on the species.
  • Banyan tree is 200 years.
  • Crow is 7-22 years, depending on the species.
  • Butterfly is from weeks to months, depending on the species.
  • Tortoise is 150 years.
Thus, the correct answer is 'Fruitfly<Crocodile<Parrot<Banyan tree.'

Study of form and structure of organisms is

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Anatomy

  2. Ecology

  3. Morphology

  4. Taxonomy

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Correct Option: C
Explanation:
Morphology is a branch of biology dealing with study of form and structure of organisms and their specific structural features. It is a life science dealing with study of structure of organisms and its component parts.
So, the correct answer is 'Morphology'

The tallest plant is

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Anthocephalus cadamba

  2. Acacia nilotica

  3. Eucalyptus regnans

  4. Raffesia arnoldii

Show answer
Correct Option: C
Explanation:
A. Anthocephalus cadamba is about 45m tall and is a tropical tree in southern Asia.
B. Acacia nilotica is medium to large tree which grows around 5 - 8 m, native to west Asia.
C. The tallest angiosperm is Eucalyptus regnans also called mountain ash which is about 140m tall in Australia.
D. Rafflesia arnoldii is an angiosperm bearing largest flowers but it is not the largest plant.
So, the correct answer is 'Eucalyptus regnans'.

Smallest flowering plant$/$ flower is?

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Polyalthia

  2. Rafflesia

  3. Azadirachta

  4. Wolffia

Show answer
Correct Option: D
Explanation:
A. Polyalthia is about 20m tall plant.
B. Rafflesia is a plant with the largest flower with over 100 cm size.
C  Azadirachta is about 30 to 40 m tall
D. Wolffia is the smallest angiosperm which is less than 2 mm in measurement.
So, the correct answer is 'Wolffia'

If you go back in the history approx. 4500 million years back when atmosphere was reducing the organism were

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Autotroph, aerobic

  2. Chemo-autotroph, anaerobic

  3. Chemo-heterotroph, anaerobic

  4. Heterotroph, anaerobic

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Correct Option: C
Explanation:

The first living organisms developed in reducingatmosphere were chemo heterotrophs as they required readymade organic materials as food and anaerobes asthey were capable of  espiration in the absence of oxygen.

A plant expected to have an age of $1500$ years is?

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Eucalyptus

  2. Sequoia

  3. Mangifera indica

  4. Dalbergia sisso

Show answer
Correct Option: B
Explanation:

Sequoia has an average age of 2000 years because of favourable climatic conditions such as tannin in the bark, which makes it resistant to insects like termites. The thickness of the bark also helps protect the inner core of the tree from fire.

So, the correct option is 'Sequoia'.

Being spontaneous ____________.

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. One

  2. Two

  3. Four

  4. Sixteen

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Correct Option: A

Metabolism is 

zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. Release of energy

  2. Gain of energy

  3. Release or gain of energy

  4. Catabolism of a reaction

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Correct Option: C
Explanation:

  • Metabolism is sum total of all the reactions taking place in the cell. 
  • It involves the synthesis and degradation of various biomolecules for many functions like energy conservation, energy release, homeostasis etc.
  • Metabolism can Be divided into two categories: Catabolism - the breakdown of molecules to obtain energy and anabolism - the synthesis of all compounds needed by the body.
So, the correct option is 'Release or gain of energy'