Bio Diversity Different Ecosystems MCQ

Questions

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    Bio Diversity Different Ecosystems MCQ for Students

    Quick Quiz

    Bio-luminescence in animals is typically observed in which oceanic zone?

    a. euphoric zone

    b. bathyal zone

    c. abyssal zone

    d. both euphoric and bathyal zones

    Option c – abyssal zone

    Which of the following is not categorized as a photic zone?

    a. littoral zone

    b. limnetic zone

    c. profundal zone

    d. limnetic and profundal zones

    Option c – profundal zone

    Daphnia and Cyclops are commonly found in the

    a. littoral zone

    b. limnetic zone

    c. profundal zone

    d. littoral and limnetic zones

    Option b – limnetic zone

    Crustaceans like crabs are generally associated with

    a. littoral zone

    b. limnetic zone

    c. profundal zone

    d. littoral and limnetic zones

    Option c – profundal zone

    Aestivation refers to

    a. summer dormancy

    b. winter dormancy

    c. spring dormancy

    d. rainy season dormancy

    Option a – summer dormancy

    Charles Darwin’s finch studies showed that

    a. all species had the same behavior

    b. body shapes varied but behavior remained the same

    c. they were unaffected by the environment

    d. vegetation influenced their adaptations

    Option d – vegetation influenced their adaptations

    What initiates every food chain?

    a. herbivores

    b. carnivores

    c. producers

    d. none of the above

    Option c – producers

    Plants do not compete for which of the following?

    a. water

    b. food

    c. space

    d. all of these

    Option b – food

    The phrase “ban all pesticides” implies

    a. restrict pesticide use

    b. completely eliminate pesticides

    c. encourage eco-friendly farming

    d. shut down pesticide manufacturers

    Option c – encourage eco-friendly farming

    According to Charles Elton, what is true about the ecological pyramid?

    a. carnivores occupy the top level

    b. energy is highest at the top

    c. there are no producers at the top

    d. carnivores are at the top and no producers at the top

    Option a – carnivores occupy the top level

    The first level in a food pyramid consists of

    a. primary consumers

    b. secondary consumers

    c. producers

    d. tertiary consumers

    Option c – producers

    The ecological pyramid concept was first introduced by

    a. Charles Elton

    b. Lindeman

    c. Slobodkin

    d. Steele

    Option a – Charles Elton

    What factor is crucial in determining terrestrial ecosystems?

    a. rainfall

    b. sunlight

    c. temperature

    d. all of these

    Option a – rainfall

    What percentage of biomass typically moves from one trophic level to the next?

    a. 100%

    b. 80–90%

    c. 10–20%

    d. 40–50%

    Option c – 10–20%

    The global area inhabited by living organisms is known as

    a. biosphere

    b. lithosphere

    c. hydrosphere

    d. none of these

    Option a – biosphere

    Bioaccumulation refers to the entry of …….. into a food chain.

    a. a new predator

    b. extra producers

    c. pollutants

    d. all of the above

    Option c – pollutants

    The main energy source for ecosystems is

    a. heat energy

    b. solar radiation

    c. mechanical power

    d. biological energy

    Option b – solar radiation

    The relationship describing the mass of organisms at different trophic levels is

    a. bioaccumulation

    b. energy pyramid

    c. biomass

    d. pyramid of numbers

    Option c – biomass

    In a grassland ecosystem, a secondary consumer is

    a. grasshopper

    b. grass

    c. snake

    d. eagle

    Option a – grasshopper

    Who is the final consumer in this food chain: green plants → deer → ?

    a. elephant

    b. wolf

    c. rat

    d. none

    Option b – wolf

    What is the fundamental unit in ecology?

    a. habitat

    b. ecosystem

    c. biosphere

    d. food web

    Option b – ecosystem

    Decomposers are also called

    a. producers

    b. consumers

    c. recyclers

    d. decayers

    Option c – recyclers

    Which of the following is a man-made ecosystem?

    a. forest

    b. river

    c. crop field

    d. pond

    Option c – crop field

    Currently, deserts occupy approximately what portion of Earth’s land?

    a. 15%

    b. 18%

    c. 20%

    d. 17%

    Option d – 17%

    The animal often called the “ship of the desert” is the

    a. fox

    b. camel

    c. elephant

    d. dog

    Option b – camel

    The term “ecosystem” was first introduced in

    a. 1926

    b. 1930

    c. 1935

    d. 1939

    Option c – 1935

    Which is the largest ecosystem on Earth?

    a. land

    b. sea

    c. biosphere

    d. habitat

    Option c – biosphere

    Who are known as producers in an ecosystem?

    a. plants

    b. animals

    c. birds

    d. none of the above

    Option a – plants

    Ecology mainly studies changes in

    a. habitat

    b. plant species

    c. animal species

    d. non-living components

    Option a – habitat

    Xerophytes refer to

    a. marine plants

    b. swamp plants

    c. moderate environment plants

    d. desert plants

    Option d – desert plants

    “Living stones” refers to

    a. marine animal shells

    b. colorful stones in rivers

    c. fungi species

    d. plants with pebble-shaped leaves

    Option d – plants with pebble-shaped leaves

    What is true about the kangaroo rat?

    a. survives without drinking water

    b. creates tiny water pools

    c. extracts water from sand

    d. cannot live without water

    Option a – survives without drinking water

    Which one is not nocturnal?

    a. cat

    b. rat

    c. bat

    d. parrot

    Option d – parrot

    In the ocean, pressure increases by 1 atmosphere for every

    a. 1 meter

    b. 10 meters

    c. 100 meters

    d. 1000 meters

    Option b – 10 meters

    The twilight zone of the ocean is found in the

    a. euphoric zone

    b. bathyal zone

    c. abyssal zone

    d. euphoric and bathyal zones

    Option b – bathyal zone

    Flying fish are primarily found in the

    a. euphoric zone

    b. bathyal zone

    c. abyssal zone

    d. bathyal and abyssal zones

    Option a – euphoric zone

    Most ecosystems in the ocean are located in the

    a. euphoric zone

    b. bathyal zone

    c. abyssal zone

    d. bathyal and abyssal zones

    Option a – euphoric zone

    Organisms with tube-like bodies and whales are commonly seen in the

    a. euphoric zone

    b. bathyal zone

    c. abyssal zone

    d. none of these

    Option b – bathyal zone

    We covered all the Bio Diversity Different Ecosystems MCQ above in this post. It helps you to prepare for any competitive exam online that covers the general science subject.

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