There are several factors and processes which differentiate living beings from nonliving beings like reproducction, respiration, growth, etc. But among them reproduction is the only difference which differentiates living being from non-living beings without any exception.

Correct Option: B

There are several factors and processes which differentiate living beings from nonliving beings like reproducction, respiration, growth, etc. But among them reproduction is the only difference which differentiates living being from non-living beings without any exception.

Biological organisms starts with submicroscopic moleculer level like viruses, bacteria etc. These organisms are unable to be seen by naked eyes without the help of microscope or even electron microscope.

Correct Option: D

Biological organisms starts with submicroscopic moleculer level like viruses, bacteria etc. These organisms are unable to be seen by naked eyes without the help of microscope or even electron microscope.

All living things have an ability to respond to their environment, that is also called stimulation.

Correct Option: C

All living things have an ability to respond to their environment, that is also called stimulation.

Basal metabolic rate is inversely proportional to body size. So smaller animals have a higher metabolic rate. Hence production of energy is more.

Correct Option: B

Basal metabolic rate is inversely proportional to body size. So smaller animals have a higher metabolic rate. Hence production of energy is more.

Binomial nomenclature consists of two words – genus and species. First word denotes genus name and second word denotes species name.

Correct Option: A

Binomial nomenclature consists of two words – genus and species. First word denotes genus name and second word denotes species name.