Tag: zoology

Quizzes (289) Questions (5869)

Questions Related to zoology

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

Which one statement for pyramid of energy is incorrect?

  1. Inverted in shape

  2. Upright in shape

  3. Base is broad

  4. Shows energy content of different trophic levels
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pyramid of energy represents the amount of energy at different trophic level. It is always upright in shape. Only 10% of energy is transferred from one trophic level to next trophic level. The majority of energy is lost during the transfer of energy. The base of pyramid of energy is always broad indicating maximum amount of energy at the first trophic level. 

Thus, the correct answer is 'Inverted in shape.'

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

Which of the following is not a limitation of pyramid?

  1. It does not take into account the same species belonging to two or more trophic level

  2. It does not accommodate a food chain

  3. It does not accommodate a food web

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecological pyramids have limitations, one of which is that they do not account for species that occupy multiple trophic levels, such as omnivores.

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

Which of the following is not limitation of pyramid?

  1. It does not take into account the same species belonging to two or more trophic level

  2. It does not accommodate a food chain

  3. It does not accommodate a food web

  4. Saprophytes are given any place
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Similar to the previous question, a major limitation of ecological pyramids is their inability to represent species that function at more than one trophic level simultaneously.

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

An ecological pyramid of biomass is often an inverted pyramid in which of following ecosystem?

  1. Desert

  2. Ocean

  3. Tundra

  4. Rain forest
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In an aquatic ecosystem, the producers are the algae and the phytoplanktons. The primary consumers are the zooplanktons and the next consumers are the fishes. The biomass of the phytoplanktons is less than the zooplanktons. There is increase in the number of the organisms with increasing trophic level. 

Thus, the correct answer is option B. 

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

Which type of pyramid of energy  is inverted?

  1. Grass land

  2. Tree

  3. Both (A) and (B)

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pyramid of energy is ecological pyramid that gives graphic representation of amount of energy trapped by different trophic levels per unit area. It is always upright because during transfer of energy from one trophic level to the next a lot of wastage occurs in feeding, digestion, assimilation and respiration i.e metabolism at each trophic level. Hence, organisms of each trophic level have more energy than each succeeding trophic level and less energy than organisms at previous trophic level. Thus, the correct answer is option D.

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

The pyramid that cannot be inverted in a stable ecosystem, is pyramid of

  1. Number

  2. Energy

  3. Biomass

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pyramid of energy is ecological pyramid, that represents the flow of energy from one trophic level to the next a lot of wastage occurs in metabolism and energy transfer. Maximum energy content is present in producers and least at top carnivore levels. Thus, the correct answer is option B.

Multiple choice zoology energy flow in an ecosystem the energy pyramid ecological pyramid ecological pyramids

The pyramid which cannot be inverted in a stable ecosystem is that of

  1. Biomass

  2. Number

  3. Energy

  4. All the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Flow of energy declines as it passes from lower to higher trophic level. The energy decreases from one trophic level to the next trophic level because energy is lost as metabolic heat during transfer of energy. Hence, the pyramid of energy is always upright in any ecosystem and it cannot be inverted in a stable ecosystem. When food energy passes from producers to herbivores to carnivores, only 10% of energy is transferred from one trophic level to another trophic level.

Thus, the correct answer is 'Energy.'