Increase in number can be-
a. Growth
b. Reproduction
c. Both a and b
d. Accumulation

Reproduction cannot be an all-inclusive defining characteristic of living organism because of
a. Asexual reproduction
b. Non living organisms also replicate
c. Examples of worker bees
d. May occur in all type of living systems instead of living organisms.

How many of the following may not or cannot reproduce?
Infertile Humans, Worker bees, Mules, Boulders, Fungi, Protonema of mosses.
a. 4
b. 3
c. 1
d. 5

In --------- organisms, --------is synonymous with -------.
a. Unicellular, increase in mass and increase in number
b. Multicellular, increase in mass and increase in number
c. Unicellular, Reproduction and growth
d. Multicellular, Reproduction and growth

What is wrong with respect to metabolism?
a. Chemical conversions or metabolic conversions are constantly going on.
b. Metabolic reactions occur simultaneously.
c. The sum total of all the chemical reaction occurring on the surface of our body is metabolism.
d. No non-living objects exhibit metabolism.

Isolated metabolic conversions in vitro are
a. Living things
b. Living reactions
c. Non- living conversions
d. Surely non living reactions

What is wrong with respect to Living reactions?
a. Neither living nor non-living.
b. Outside the body
c. Test tube reactions
d. Occurring in cells in the test tubes.

--------------- is the defining feature of living beings-------exception.
a. Metabolic reactions, with
b. Metabolism, without
c. Isolated metabolic reactions, without
d. Metabolism, with

The most obvious and technically complicated feature of all living organisms would be-
a. Sensing stimuli and responding to it.
b. Metabolism
c. Reproduction
d. Defence

According to all limitations, finally which is the defining feature of life forms?
a. Metabolism
b. Cellular organisation
c. Reproduction
d. Growth