alleryThe natural interconnection of many food chains forms a:
- Standing crop
- Food web
- Food pyramid
- Trophic level
Show answer and solution
Correct answer: B. Food web
Linked food chains with shared organisms make up a food web.
NEET UG Ecosystem — practice questions — page 3
Explore 105 free Ecosystem questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 61–90 of 105.
The natural interconnection of many food chains forms a:Read the answer and worked solution →Herbivores occupy which trophic level?Read the answer and worked solution →Moving up successive trophic levels, the amount of energy available:Read the answer and worked solution →Biomass of a species is measured more accurately in terms of its:Read the answer and worked solution →A secondary carnivore gets 5 J. By the 10 per cent law, what energy did producers hold?Read the answer and worked solution →Why is the number of trophic levels in a grazing food chain limited?Read the answer and worked solution →The base of an ecological pyramid represents the:Read the answer and worked solution →Which is NOT one of the three ecological pyramids usually studied?Read the answer and worked solution →In a grassland pyramid of numbers, nearly 6 million plants support about how many top carnivores?Read the answer and worked solution →A trophic level in an ecosystem represents a:Read the answer and worked solution →A pyramid of numbers with many parasites feeding on one large host animal is:Read the answer and worked solution →The pyramid of energy can never be inverted because:Read the answer and worked solution →Which organisms are given no place in ecological pyramids?Read the answer and worked solution →One limitation of ecological pyramids is that they:Read the answer and worked solution →The reservoir of a gaseous nutrient cycle like carbon is the:Read the answer and worked solution →Which element follows a sedimentary type of nutrient cycle?Read the answer and worked solution →Purification of air and water by forests is an example of:Read the answer and worked solution →The storage and movement of nutrient elements through ecosystem components is:Read the answer and worked solution →The rate of production of organic matter during photosynthesis is called:Read the answer and worked solution →A considerable amount of gross primary productivity is used by plants in:Read the answer and worked solution →Who developed the concept of the pyramid of numbers?Read the answer and worked solution →Which device can be used to measure biomass in energy terms?Read the answer and worked solution →An advantage of the pyramid of energy is that it:Read the answer and worked solution →Small forested streams can hold more consumers than local production allows due to:Read the answer and worked solution →A pyramid of numbers counts organisms at each level without considering their:Read the answer and worked solution →The process by which species composition of a community changes over time is called:Read the answer and worked solution →Succession that begins on newly exposed rock, sand or lava flows is called:Read the answer and worked solution →Succession after a fire destroys a pre-existing community is called:Read the answer and worked solution →Why can early stages of secondary succession be relatively rapid?Read the answer and worked solution →In Clements' stages of succession, ecesis refers to:Read the answer and worked solution →
Worked practice questions
Herbivores occupy which trophic level?
- Second
- First
- Third
- Fourth
Show answer and solution
Correct answer: A. Second
Producers are the first level and herbivores, the primary consumers, are the second.
Moving up successive trophic levels, the amount of energy available:
- Doubles each step
- Increases steadily
- Decreases steadily
- Stays constant
Show answer and solution
Correct answer: C. Decreases steadily
Energy is lost at each transfer, so less is available at every higher level.
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