1. Biodiversity :
a) refers to the number and types of
organisms present on earth.
b)Is the degree of variation of life
forms within a given ecosystem, biome and entire planet.
c) is the measure of heath of an
ecosystem
d)all of these
Ans: d)all of these
2. The number of species that are known (in millions)
a)0.1 -0.4
b)1.7-1.8
c) 0.7- 0.8
d) 2.8-3.8
ans: b)1.7-1.8
3. The important properties present in living
organism are
a) growth and reproduction
b)metabolism and consciousness
c)response to stimuli
d)all are correct
d)all are correct
4. Twin
characteristics of growth are
a)increase in mass and length
b) increase in are a only
c) increase in length and area
d)increase
in mass and increase in number of individuals
ans: d)increase in mass and increase in number of individuals
5. Technically , the most complicated feature
of a living organism is
a) growth
b) consciousness
c) response to stimulus
d)metabolism
ans: b) consciousness
6. Majority of the terrestrial species diversity
is confined in the
a) tropical deserts
b)tropical rain forests
c)water reef
d)grassland
ans: b)tropical rain forests
7. Animal diversity is approximately --- times
greater than plant diversity.
a)1.4
b)2.4
c)3.4
d)5.4
b)2.4
8. How many statements are correct
i)like plants , animals show growth throughout
their life span.
ii)virus undergo cell division
iii)in higher plants and animals
growth and reproduction are mutually exclusive events
iv) growth in living organism is
intrinsic/ ptotoplasmic and not extrinsic
v)growth and reproduction are mutually
inclusive events in single cell organisms
How many statements are correct
a)1
b)2
c)3
d)4
ans: c)3
9. Metabolism:
a) is not exhibited by bacteria and
fungi
b) cannot be demonstrated invitro
c)is the property of only
multi cellular forms
d) is a defining feature of life forms
ans: d) is a defining feature of life forms
10. Which of the following is the exclusive
defining feature of living organisms?
a) growth and reproduction
b) growth and consciousness
c)metabolism and consciousness
d)none of these
ans: c)metabolism and consciousness