Some Major Ecosystems MCQs for MDCAT Practice
Biology section, Some Major Ecosystems chapter. Up to eight free sample questions, each with the correct answer and a worked explanation. The full chapter opens in the app.
The bank has 121 active questions on this chapter. Your first 500 practice attempts are free, and every attempt includes a worked explanation.
- Question 1Which one is not a desert?
- Thal
- Thar
- Sahara
- Taiga (correct answer)
Correct answer: DThis question tests the ability to differentiate between desert ecosystems and other biome types, specifically distinguishing Taiga from arid desert environments. - Question 2Grassland present in temperate climates are called as
- Savana
- Prairies (correct answer)
- Coniferous
- Forest.
Correct answer: BTemperate grasslands are known as Prairies. This MCQ tests the ability to distinguish between different types of grasslands based on their climate and geographical names. - Question 3Describe the animal life in Profundal zone.
- It consists of zooplankton, small fish, and photosynthetic bacteria. (correct answer)
- It consists of small fish, insect larvae, and anaerobic bacteria.
- It consists of fish, crustaceans, and decomposer bacteria.
- It consists of large aquatic plants and floating algae.
Correct answer: AThe profundal zone is characterized by limited light and life, primarily inhabited by decomposers and detritivores. - Question 4Grassland in tropic climates have woody trees and are called:
- Pampas
- Prairies
- Veld
- Savanna (correct answer)
Correct answer: DTropical grasslands with scattered trees are termed savannas, differentiating them from other grassland types like pampas and prairies. - Question 5Zoological name of rhesus monkey is:
- Felis leo
- Macaca mulatto (correct answer)
- Solenorotos tibitanus
- Felis bengalensis
Correct answer: BThis question tests your knowledge of the scientific classification of common animals, specifically the rhesus monkey. - Question 6Distinguish Coniferous Alpine and Coniferous Boreal Forests.
- oniferous Alpine forests have taller trees than Coniferous Boreal forests. (correct answer)
- oniferous Alpine forests have a higher species diversity than Coniferous Boreal forests.
- Coniferous Alpine forests are found at high elevations, while Coniferous Boreal forests are found at high latitudes.
- oniferous Alpine forests receive more rainfall than Coniferous Boreal forests.
Correct answer: ADifferentiate Coniferous Alpine Forests (high altitude, short growing season, scattered trees) from Coniferous Boreal Forests (lower altitude, longer growing season, dense forests). - Question 7Which of the biomes has been increased in area by human activities.
- Sawana
- Grassland
- Coniferous
- Desert (correct answer)
Correct answer: DHuman activities, particularly deforestation and irrigation, have expanded desert biomes at the expense of other ecosystems. - Question 8Differentiate between prairies and savana.
- Prairies are found in temperate regions while savanna is found in tropical regions. (correct answer)
- Prairies have moderate rainfall while savanna has heavy rainfall.
- Prairies have tall grasses while savanna has short grasses.
- Prairies have hot summers while savanna has cold summers.
Correct answer: APrairies are temperate grasslands with distinct cold winters and hot summers, dominated by grasses, while savannas are tropical grasslands with scattered trees and a wet/dry season.
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