Tag: living and non living

Questions Related to living and non living

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

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

  2. $Butterfly < Crow < Parrot < Crocodile$

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

  4. $Parrot < Tortoise < Dog < Crow$


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

  1. Anatomy

  2. Ecology

  3. Morphology

  4. Taxonomy


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

  1. Anthocephalus cadamba

  2. Acacia nilotica

  3. Eucalyptus regnans

  4. Raffesia arnoldii


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?

  1. Polyalthia

  2. Rafflesia

  3. Azadirachta

  4. Wolffia


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.
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

  1. Autotroph, aerobic

  2. Chemo-autotroph, anaerobic

  3. Chemo-heterotroph, anaerobic

  4. Heterotroph, anaerobic


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?

  1. Eucalyptus

  2. Sequoia

  3. Mangifera indica

  4. Dalbergia sisso


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'.

Metabolism is 

  1. Release of energy

  2. Gain of energy

  3. Release or gain of energy

  4. Catabolism of a reaction


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'

Read the following statements and select the correct option.


Statement 1: Reproduction cannot be considered as a defining property of living organisms.
Statement 2: There are many living organisms which do not reproduce, e.g., mules, worker bees, etc.

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statements 1 and 2 are incorrect.


Correct Option: A
Explanation:

A- Reproduction cannot be considered an inclusive defining characteristics of living organisms of the following. In single celled organism growth and reproduction are synonym as increased in no. of cells is considered as growth as well reproduction. Organisms like mule and liger can't reproduce fertile offspring.

B- Growth is the increase in the number or mass of cells. However, reproduction in case of unicellular organisms is also achieved by an increase in cell number. Thus, growth and reproduction are synonymous and cannot be the distinguishing factor. Moreover, there are many organisms such as worker bees, mules, infertile human couples that cannot reproduce. 
So, the correct option is ' Both statements 1 and 2 are correct'.

Apart from our earth which other planet of solar system has possibilities of life?

  1. Mercury

  2. Jupiter

  3. Venus

  4. Mars


Correct Option: D
Explanation:

Planet Mars is believed to contain three most essential requirement of life i.e., Chemical building blocks abundance , source of water and a source of energy as volcanoes . Thus, it is expected that apart from earth Mars is the planet which can cater life.