MCQ ON ECOLOGY class 12 for NEET

MCQ ON ECOLOGY class 12 for NEET | ECOLOGY class 12 | MCQ ECOLOGY with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.

MCQ ON ECOLOGY class 12 for NEET

MCQ on ECOLOGY class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on ECOLOGY with Answers to help students understand the concept very well.

MCQ ON ECOLOGY is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24

Introduction:
Diversity is not only a characteristic of living organisms but also a content in biology textbook. Biology is presented either botany, zoology and microbiology or as classical and modern. Latter we have many threads which weave the different areas of biological information into unifying principle. Ecology is one such thread which gives us a holistic perspective to biology. The essence of biological understanding is to know how organisms while remaining in individual interact with other organisms and physical habitat as a group hence behave like organised wholes, population community, ecosystem or even as a whole biosphere. Ecology explains to us all these. A particular aspect is that study of anthropology environment degradation and the socio political issues. Ecology and organic level is essentially physiological ecology which tries to understand how different organisms are adapted to their environment in terms of not only survival but also reproduction

MCQ ON ECOLOGY class 12 for NEET

1. Study of inter relationship between organism and their environment is

(a) ecology
(b) ecosystem
(c) phytogeography
(d) ethology

Ans (a) ecology

2. Study of inter relationship between a species or individual and its environment in all stage of life cycle is

(a) synecology
(b) ecology
(c) autocology
(d) forest ecology

Ans. (c) autocology

3. Synecology is study of inter relationship between an environment and

(a) individual plant
(b) population
(c) community
(d) individual animal

Ans. (c) community

4. Individuals of species which occur in a particular area constitute

(a) flora
(b) fauna
(c) population
(d) flora and fauna

Ans.(c) population

5. Ecology was coined by

(a) Linnaeus
(b) haeckel
(c) Harvey
(d) Odum

Ans.(b) Haeckel

6. The sum total of the population of the same kind of organisms constitutes

(a) Colony
(b) genus
(c) species
(d) community

Ans.(c) species

7. Ephemerals are a type of xerophytes

(a) drought escaping
(b) drought resisting
(c) drought enduring
(d) none of the above

Ans.(a) drought escaping

8. Succulents occurs in

(a) deserts
(b) tundra
(c) temperate deciduous forest
(d) tropical rainforest

Ans.(a) deserts

9. Submerged hydrophytes have a well developed

(a) vascular system
(b) parenchyma
(c) aerenchyma
(d) root system

Ans. (c) aerenchyma

10. Stem of submerged hydrophytes is soft and weak because of

(a) absence of phloem
(b) absence of stomata
(c) absence of xylem
(d) develop supporting tissue and xylum

Ans. (d) feebly developed supporting tissue and xylum

11. In summer hydrophytes the stomata occur

(a) on lower surface
(b) on the upper surface
(c) no where
(d) on board the surface

Ans.(c) no where

12. Shallow lakes with abundant organic matter are

(a) saprotrophic
(b) oligotrophic
(c) eutrophic
(d) heterotrophic

Ans . (c) eutrophic

13. The factor related to structure of earth surface is

(a) Edaphic
(b) Biotic
(c) Temperature
(d) Topographic

Ans.(d) topographic

14. Niche of a species is

(a) place of living
(b) specific function and comparative power
(c) habitat and specific function
(d) none of the above

Ans. (c) habitat and specific function

15. Benthoic animal lives

(a) deep in sea
(b) floating
(c) submerged
(d) active swimmers

Ans.(a) deep in sea

16. Plants of salty sea shore wet lands are

(a) heliophytes
(b) hydrophytes
(c) halophytes
(d) saprophytes

Ans.(c) halophytes

17. The animals that can tolerate a narrow range of salinity

(a) stenohaline
(b) euryhaline
(c) anadromous
(d) All the above

And.(a) stenohaline

18. Vivipary occurs in

(a) betula
(b) rhizophora
(c) mango
(d) All the above

Ans. (b) rhizophora

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19. Xerophytes possess

(a) sunken stomata
(b) deep roots
(c) thick cuticle
(d) all the above

Ans.(d) all the above

20. Viviparity and pneumatophores are features of

(a) hydrophytes
(b) halophytes
(c) mesophytes
(d) all the above

Ans.(b) halophytes

21. ozone layer is found in

(a) thermosphere
(b) stratosphere
(c) mesosphere
(d) lithosphere

Ans.(b) stratosphere