NEET Mock Test on Ecology

Note : All these Questions of Ecology NEET Mock Test are directly taken from our favorite NCERT Textbook and Previous year Questions Papers.

No. of Questions in Mock Test	50 with Explanation
Time for each Questions	60 Seconds
Attempts Allowed	Unlimited
Available	Always
Pass Percentage	70 %

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➥ Chapterwise Biology Quizzes

Ecology Mock Test NEET

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#1. Natality refers to

Death rate

Birth rate

Number of individuals entering a habitat

Number of individuals leaving the habitat

Death rate – MortalityNumber of individual entering a habitat is – ImmigrationNumber of individual leaving the habital – Emigration

#2. If '+' sign is assigned to beneficial interaction, '–' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '–' refers to

Mutualism

Amensalism

Commensalism

Parasitism

#3. Both, hydrarch and xerarch successions lead to

Highly dry conditions

Excessive wet conditions

Medium water conditions

Xeric conditions

Both, hydrarch and xerarch succession lead to mesic i.e., medium water conditions.

#4. World Ozone Day is celebrated on

5th June

21st April

21st September

16th September

#5. Joint Forest Management Concept was introduced in India during

1980

1970

1979

1967

Joint Forest Management Concept was introduced in India during 1980s by the Government of India to work closely with the local communities for protecting and managing forests.

#6. Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of

Oxygen

Food

Light

Essential minerals

BOD level increases due to rapid growth of microbes.

#7. Autecology is the

Relation of a population to its environment

Relation of an individual to its environment

Relation of a community to its environment

Relation of a biome to its environment

Autecology – the study of the interactions of an individual organism or a single species to its environment.

#8. Ecotone is

A polluted area

The bottom of a lake

A zone of transition between two communities

A zone of developing community

An ecotone is a transitional area between two different ecosystems, such as a forest and a grassland.

#9. Biosphere is

A component in the ecosystem

Composed of the plants present in the soil

Life in the outer space

Composed of all living organisms present on earth which interacts with the physical environment.

#10. According to Allen’s Rule, the mammals from colder climates have

Shorter ears and longer limbs

Longer ears and shorter limbs

Longer ears and longer limbs

Shorter ears and shorter limbs

NCERT Class 12 Page No.226 1st Para 2nd Line

#11. Salt concentration (Salinity) of the sea measured in parts per thousand is

10-15

30-70

0-5

30-35

NCERT Class 12 Page No.222 ( Water: 6th line from below)

#12. Formation of tropical forests needs mean annual temperature and mean annual precipitation as

18-25°C and 150-400 cm

5-15°C and 50-100 cm

30-50°C and 100-150 cm

5-15°C and 100-200 cm

NCERT Class 12 Page No.220 ( Figure 13.1 )

#13. Which of the following forest plants controls(overshadowed) the light conditions at the ground?

Lianas and climbers

Shrubs

Tall trees

Herbs

NCERT Class 12 Page No.22 (Light: 6th line from top)

#14. What will happen to a well growing herbaceous plant in the forest if it is transplanted outside the forest in a park?

It will grow normally.

It will grow well because it is planted in the same locality.

It may not survive because of the change in its micro climate.

It grows very well because the plant gets more sunlight.

It may not survive because of change in its micro climate like the soil type, micro-organisms present in the zone surrounding its roots, the tree canopies that create certain micro environmental conditions along with other plants growing in the vicinity.

#15. Which one of the following organisms breed only once in their lifetime

Bamboo

Mango

Tomato

Eucalyptus

NCERT Class 12 Page No.232 1st Paragraph 2nd Line

#16. Lichens are the associations of

Bacteria and fungus

Algae and bacterium

Fungus and algae

Fungus and virus

NCERT Class 12 Page No.237 ( (v) Mutualism: 2nd line)

#17. Amensalism is an association between two species where

One species is harmed and other is benefitted.

One species is harmed and other is unaffected.

One species is benefitted and other is unaffected.

Both the species are harmed.

NCERT Class 12 Page No.233 4th line from top

#18. Which of the following would necessarily decrease the density of a population in a given habitat?

Natality > mortality

Immigration > emigration

Mortality and emigration

Natality and immigration

NCERT Class 12 Page No.228 ( 13.2.2 )

#19. The process of mineralization by microorganisms helps in the release of

Inorganic nutrients from humus.

Both organic and inorganic nutrients from detritus.

Organic nutrients from humus.

Inorganic nutrients from detritus and formation of humus.

NCERT Class 12 Page No.244 1st Paragraph

#20. An inverted pyramid of biomass can be found in which ecosystem?

Forest

Sea

Grassland

Tundra

NCERT Class 12 Page No.249 4th Paragraph

#21. Which of the following ecosystems is more productive in terms of net primary production?

Deserts

Tropical rain forests

Oceans

Estuaries

#22. Pyramid of numbers is

Always upright

Always inverted

Either upright or inverted

Neither upright nor inverted

NCERT Class 12 Page No.248 Figure

#23. Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

Less than 1%

2 to 10%

30%

50%

About 1−5% of total incident solar energy or 2−10% of PAR is captured by the photosynthetic organisms for photosynthesis.

The raw products of photosynthesis are water, carbon dioxide, sunlight, chlorophyll , light, some amount of nitrogen, phosphours , sulfur or other trace elements.

#24. Among the following, where do you think the process of decomposition would be the fastest?

Tropical rain forest

Antarctic

Dry arid region

Alpine region

Tropical rainforests have the optimum conditions of moisture and temperature. Consequently, the rate of decomposition in tropical vain forests is also high.

#25. Climax community is in a state of

Non-equilibrium

Equilibrium

Disorder

Constant change

NCERT Class 12 Page No.250 (14.6 2nd Paragraph 5th line)

#26. During the process of ecological succession the changes that take place in communities are

Orderly and sequential

Random

Very quick

Not influenced by the physical environment

NCERT Class 12 Page No.250 ( 14.6 2nd Paragraph 2nd Line)

#27. Which of the following is an ecosystem service provided by a natural ecosystem?

Cycling of nutrients

Prevention of soil erosion

Pollutant absorption and reduction of the threat of global warming

All of the above

#28. Which of the following have only unidirectional fl ow?

Carbon

Nitrogen

Energy

Sulphur

NCERT Class 12 Page No.256 ( SUMMARY 3rd Paragraph 1st line)

#29. NPP is equal to

GPP + R

GPP – R

GPP × R

GPP ÷ R

NCERT Class 12 Page No.243 (Below 1st Paragraph it’s mentioned)

#30. What is the percentage of primary productivity of oceans?

50%

90%

32%

70%

Total 170 billion tons ( oceans are only 55 billion tons.) NCERT Class 12 Page No.243 3rd Paragraph

Solve % You got the Answer

#31. What is common to the techniques (i) in vitro fertilization
(ii) Cryo preservation
(iii) tissue culture

All are in situ conservation methods.

All are ex situ conservation methods.

All require ultra-modern equipment and large space.

All are methods of conservation of extinct organisms.

NCERT Class 12 Page No.267 ( Ex situ Conservation– 10th line from top 1st Paragraph)

#32. The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as

CITES Convention

The Earth Summit

G-16 Summit

MAB Programme

NCERT Class 12 Page No.267 ( last paragraph 3rd line from top)

#33. Which of the following group exhibit more species diversity?

Gymnosperms

Algae

Bryophytes

Fungi

NCERT Class 12 Page No.260 1st Paragraph

#34. The active chemical drug reserpine is obtained from

Datura

Rauvolfia

Atropa

Papaver

NCERT Class 12 Page No.259 ( Genetic diversity: 3rd line)

#35. Which of the following forests is known as the ‘lungs of the planet Earth’?

Tiaga forest

Tundra forest

Amazon rain forest

Rain forests of Northeast India

NCERT Class 12 Page No.264 ( Habitat loss and fragmentation: 8th line from Top)

#36. Among the ecosystem mentioned below, where can one find maximum biodiversity?

Mangroves

Desert

Coral reefs

Alpine meadows

NCERT Class 12 Page No.258 (Ecological diversity)

Mangroves provide maximum terrestrial biodiversity, while coral reefs provide maximum global biodiversity.

#37. Which of the following statements is correct?

Parthenium is an endemic species of our country.

African catfish is not a threat to indigenous catfishes.

Steller’s sea cow is an extinct animal.

Lantana is popularly known as carrot grass.

NCERT Class 12 Page No.263 (last paragraph 3rd line from below )

#38. The extinction of passenger pigeon was due to

Increased number of predatory birds

Over exploitation by humans

Non-availability of the food

Bird flu virus infection

NCERT Class 12 Page No.265 (1st Paragraph 2nd line)

#39. What is common to Lantana, Eichhornia and African catfish?

All are endangered species of India.

All are key stone species.

All are mammals found in India.

All the species are neither threatened nor indigenous species of India.

NCERT Class 12 Page No.265 2nd Paragraph 4th line from below

#40. The Earth Summit (Historic Convention on Biological Diversity) was held in

Johannesburg, South Africa, 2002

Rio De Janeiro, 1992

Kyoto, Japan

Montreal, Canada

We already added same Question Above but we changed the way 😀

#41. Which of these are hotspots of India?

Western Ghats

Himalaya

Indo-Burma

All of these

NCERT Class 12 Page No.266 last paragraph

#42. The current rate of species extinction is how many times faster than the pre-human time?

10 to 50 times

100 to 1000 times

1000 to 10,000 times

10,000 to 1,00,000 times

NCERT Class 12 Page No.264 (2nd Paragraph 4th line from below)

#43. Non-biodegradable pollutants are created by

Nature

Excessive use of resources

Humans

Natural disasters

NCERT Class 12 Page No.278 3rd Paragraph

#44. According to the Central Pollution Control Board, particles that are responsible for causing great harm to human health are of diameter

2.50 micrometre

5.00 micrometre

10.00 micrometre

7.5 micrometre

NCERT Class 12 Page No.271 (5th line from below)

#45. The world’s most problematic aquatic weed is

Wolffia

Eichhornia

Azalia

Trapa

NCERT Class 12 Page No.275 (last line just above Figure 16.4)

#46. Which of the following causes biomagnification?

SO₂

Mercury

DDT

Both (b) and (c)

NCERT Class 12 Page No.276 (4th Paragraph 4th line from top)

#47. The green scum seen in the fresh water bodies is

Blue green algae

Red algae

Green algae

Both (a) and (c)

NCERT Class 12 Page No.277 1st Paragraph 8th line

Please Check Once We found Correct Answer Blue Green Algae Also

#48. The loudness of a sound that a person can withstand without discomfort is about

150 dB

120 dB

200 dB

80 dB

#49. Scrubber is used to remove which of the following gas?

SO₂