MCQ on Ecosystem‌: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.

In this post we are providing you MCQ on Ecosystem‌, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.

MCQ on Ecosystem‌

Q1. This entity will be the first one to colonize a bare rock.
a) Herbs and shrubs
b) Annual Plants
c) Lichens
d) Perennial plants

Q2. This is a characteristic feature of cropland ecosystem
a) Absence of weeds
b) Ecological succession
c) least genetic diversity
d) least genetic diversity

Q3. During ecological succession ________.
a) types and numbers of animals remain constant
b) establishment of a new biotic community is fast in its primary phase
c) predictable and gradual changes in species composition take place in a given area
d) changes lead to a community that is in near equilibrium with the environment and is referred to as pioneer community

Q4. In an ecosystem, which one of the following types of entities occupies more than one trophic level?
a) Frog
b) Phytoplankton
c) Zooplankton
d) Fish

Q5. ________ are the primary producers of the deep-sea hydrothermal vent ecosystem.
a) blue-green algae
b) coral reefs
c) chemosynthetic bacteria
d) green algae

Q6. At the producer level, if 20J of energy is trapped, then how much energy will be available to a peacock as food in the subsequent chain?                                                                                                                                                      Plant -> Mice -> Snake -> Peacock
a) 0.2 J
b) 0.02 J
c) 0.002 J
d) 0.0002 J

Q7. The rate at which food energy is assimilated at the trophic level of consumers is known as ________.
a) Gross primary productivity
b) Net primary productivity
c) Secondary productivity
d) None of the above

Q8. ________ ecosystem has the maximum biomass.
a) Grassland ecosystem
b) Pond Ecosystem
c) Lake ecosystem
d) Forest ecosystem

Q9. Limitations of ecological pyramids involve all these statements, except –
a) they assume a simple food chain and do not consider food webs
b) in the ecological pyramids, saprotrophs are not given any place
c) they do not take into account the same species belonging to two or more trophic levels
d) they do not represent relationships between organisms at different trophic levels

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By Team Learning Mantras