Are you looking for Mcqs on Ecology? If Yes then you are at right place. Here you will find Ecology Mcq Questions and Answers, Trivia, Quiz, Interview MCQ & Ecology Current Affairs for Competitive Exams like Neet exams, around 30% to 40% of Neet questions are asked from given Ecology Mcqs. as you know Questions and Ansers on Ecology is very important for Neet Exam. In this Ecology MCQ section for Neet competition we are covering MCQS on Ecology
Question : The eggshell of birds becomes thin by the pollution from pesticides due to the interference in the activity of
A. Calmodulin
B. MgATPase
C. CaATPase
D. Calcium
Question : dB is the abbreviation used for the quantitative expression of
A. Density of bacteria in a medium
B. A Particular Pollutant
C. Dominant Bacillus in a culture
D. A pesticide
Question : Plant species with a wide range of genetic distribution evolve into a local population known as
A. Ecotype
B. Population
C. Ecosystem
D. Biome
Question : Which of the following lake zones has phytoplanktons in abundance?
A. Littoral zone
B. Benthic zone
C. Limnetic zone
D. Profundal zone
Question : The population of birds declined in an area where DDT was extensively used. Why?
A. The birds stopped laying eggs
B. The eggs laid by the birds did not hatch
C. The snakes ate the eggs
D. The DDT spray killed all the birds
Question : The pyramid of energy is always upright states that
A. The energy conversion efficiency of herbivores is better than carnivores
B. The energy conversion efficiency of carnivores is better than herbivores
C. Producers have the lowest energy conversion efficiency
D. Energy conversion efficiency is the same in all trophic levels.
Question : Identify the mismatched pair
A. Tundra – Permafrost
B. Savanna – Acacia trees
C. Prairie – Epiphytes
D. Coniferous forest – Evergreen trees
Question : The upper part of an aquatic ecosystem contains
A. Nekton
B. Plankton
C. Benthos
D. both (1) and (2)
Question : All species of Lemur are endemic to which area?
A. Madagascar
B. Seychelles Island
C. Galapagos Island
D. New Caledonia
Question : Which one is a K selected species?
A. Aspergillus
B. Human
C. Taraxacum
D. Grass
Question : Select a non-denitrifying bacteria
A. Pseudomonas aeruginosa
B. Thiobacillus
C. Thiobacillus denitrificans
D. Bacillus ramosus
Question : In thermal stratification, the middle region which shows vertical temperature change is called
A. Mesolimnion
B. Epilimnion
C. Metalimnion
D. Hypolimnion
Question : In an ecosystem, the energy flow is always
A. Always unidirectional
B. Always bidirectional
C. In any direction
D. Always down directional
Question : The ability of a population to increase under ideal environmental conditions is called
A. Natality
B. Carrying capacity
C. Biotic potential
D. Absolute natality
Question : The ratio between energy flow at different points in a food chain is known as
A. Ecological capacity
B. Ecological efficiency
C. Ecological assimilation
D. Ecological potential