Biology Test 114

Question 1

4 / -1

Which one of the following option gives the correct categorisation of three examples according to the type of species (A, B, C) they give out :-

	A Key stone species	B Critical link species	C Endemic species
(1)	Meta sequioa in china valley	lion in forest	Mycorrhizal fungi
(2)	Kangaroo in Australia	Fig tree in tropical forest	Pollinator insect
(3)	Kangaroo Rat in Desert	Mycorrhizal fungi	Meta sequoia in china valley
(4)	Lion in forest	Kangaroo in Australia	Pollinator Insect

(1)

(2)

(3)

(4)

Question 2
4 / -1

Read the following statement carefully and give the answer :-

(A) The organism try to maintain the constancy of its internal environment this process is called homeostasis

(B) A very few lower vertebrate and invertebrate species are also indeed capable of regulation

(C) An overwhelming majority (99%) of animals and nearly all plant cannot maintain a constant internal enviornment.

(D) Some species have evolved the ability to conferm but only over a limited range of environment conditions beyond which they simply regulate

A
Four statement are incorrect

B
Three statement are incorrect

C
Two statement are incorrect

D
Only one is incorrect

Question 3
4 / -1

Habitat includes :-

(a) Biotic component

(b) Physio chemical component

(c) Pathogens, parasite, predator, competitions

(d) Different species

A
a, b, d

B
a, d

C
b, c, d

D
a, b, c, d

Question 4
4 / -1

Choose the correct pair :-

A
Oysters & pelagic fishes - breed many time during their life time and produce small number of offsprings

B
Pacific salmon fishes - breed only ones in their life time

C
Birds and mammals - large number of small sized offsprings

D
Bamboo - small number of large size offspring

Question 5
4 / -1

Directions For Questions

Read statements regarding population interacton:

(A) Biological control methods are adopted in agricultural pest control

(B) In the rocky intertidal areas of American pacific coast starfish is an important predator.

(C) Some species of insect & frog show camouflagae

(D) Parasite and host show co-evolution

...view full instructions

How many of above statements are correct ?

A
Only statement A, B, C

B
Only statement D

C
Only statement C, D

D
A, B, C and D

Question 6
4 / -1

Which statement is/are correct ?

(a) Ecology is a subject which studies the interaction among organism and between the organisms with its physical (abiotic) environment.

(b) Ecology is a subject which studies the interaction between the organism with its physical (abiotic) environment only.

(c) Ecology is a subject which studies the interaction between the organism with its biotic environment only.

(d) Ecology is a subject which studies the interaction between organisms and its biotic and physical (abiotic) environment.

A
Only d are correct

B
Only a are correct

C
a and d are correct

D
a, b, c, d are correct

Question 7
4 / -1

Which of the following statement is not correct?

A
Primary production is defined as the amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis.

B
Secondary productivity is the rate of formation of new organic matter by consumers.

C
Gross primary productivity is the amount of stored organic matter in plant tissues after respiratory utilisation.

D
Total living organic matter present in an ecosystem at a given time is called standing crop.

Question 8
4 / -1

Which of the following statement(s) are correct :

(A) High concentration of DDT disturbs calcium metabolism in birds

(B) Cryopreservation technique is used in insitu-conservation

(C) The size of population for any species is a static parameter.

(D) Developing countries have more steeper age-pyramids

A
A, B and C

B
B, C and D

C
A and D

D
C and D

Question 9
4 / -1

Predators maintain the species diversity in a community by :

A
Decreasing the competition between species

B
Increasing the competition between species

C
Predators do not affect the competition between species

D
Predators do not maintain the species diversity in a community

Question 10
4 / -1

The interaction in which one species is inhibited by toxic secretion of other species is called

A
Parasitism

B
Predation

C
Competition

D
Amensalism

Submit Test

Biology Test 11...

Question 1

(1)

(2)

(3)

(4)

Question 2

Four statement are incorrect

Three statement are incorrect

Two statement are incorrect

Only one is incorrect

Question 3

a, b, d

a, d

b, c, d

a, b, c, d

Question 4

Oysters & pelagic fishes - breed many time during their life time and produce small number of offsprings

Pacific salmon fishes - breed only ones in their life time

Birds and mammals - large number of small sized offsprings

Bamboo - small number of large size offspring

Question 5

Only statement A, B, C

Only statement D

Only statement C, D

A, B, C and D

Question 6

Only d are correct

Only a are correct

a and d are correct

a, b, c, d are correct

Question 7

Primary production is defined as the amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis.

Secondary productivity is the rate of formation of new organic matter by consumers.

Gross primary productivity is the amount of stored organic matter in plant tissues after respiratory utilisation.

Total living organic matter present in an ecosystem at a given time is called standing crop.

Question 8

A, B and C

B, C and D

A and D

C and D

Question 9

Decreasing the competition between species

Increasing the competition between species

Predators do not affect the competition between species

Predators do not maintain the species diversity in a community

Question 10

Parasitism

Predation

Competition

Amensalism

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