Description : The mass of living material at a trophic level at a particular time is called (a) net primary productivity (b) standing crop (c) gross primary productivity (d) standing state.
Last Answer : (b) standing crop
Description : Mass of living matter at a trophic level in an area at any time is called:
Last Answer : Mass of living matter at a trophic level in an area at any time is called: A. Standing state B. Standing crop C. Detritus D. Humus
Description : High quality crop soil requires humus as a major component. Which of the following best describes the composition of humus w) fine sand particles x) decaying organic matter y) mineral like clay matter z) chemical fertilizers
Last Answer : ANSWER: X -- DECAYING ORGANIC MATTER
Description : The mass of living material at a trophic level at a particular time is called:
Last Answer : The mass of living material at a trophic level at a particular time is called: A. ... productivity C. Standing state D. Net primary productivity
Description : Indicate which of the statement is incorrect (a) The detritus tank is type of a grit chamber (b) In detritus tank, velocity of flow is further reduced (c) Grit chambers are provided in the sewage ... to remove the heavier inorganic matter as grit, sand etc. from the sewage (d) None of them*
Last Answer : (d) None of them*
Description : The animals feed upon organic matter mixed with the soil are (a) Herbivores (b) Saprozoic (c) Mixotrophic (d) Detritus
Last Answer : (d) Detritus
Description : Alluvial soils are rich soil for crop cultivation but are poor in– (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : (2) nitrogen and humus Explanation: Alluvial soils are fertile soils composed of sediments deposited by rivers and the waves. However, they are usually deficient in nitrogen and ... With suitable irrigation, fertilizers and proper agricultural practices, alluvial soils are generally very fertile.
Description : Alluvial soils are rich soil for crop cultivation but are poor in (1) humus (2) nitrogen and humus (3) organic material (4) inorganic material
Last Answer : nitrogen and humus
Description : The organic matter present in soil is known collectively as – (1) Hydrocarbons (2) Podsols (3) Humus (4) Colloids
Last Answer : (3) Humus Explanation: The organic matter present in soil is known collectively as humus. Humus is fully decomposed and finely divided organic matter. Dune is a hill or ridge of sand accumulated and sorted by wind action.
Description : The organic matter present in soil is known collectively as (1) Hydrocarbons (2)Podsols (3) Humus (4)Colloids
Last Answer : Humus
Description : Pick up the correct statement from the following: A. Indore method of composting involves decomposition under aerobic conditions B. Bangalore method of composting involves decomposing under anaerobic conditions C ... the Bangalore method of compositing is a powdery mass called humus D. all of these
Last Answer : ANS: D
Description : Pyramid of numbers deals with number of (a) species in an area (b) individuals in a community (c) individuals in a trophic level (d) subspecies in a community.
Last Answer : (c) individuals in a trophic level
Description : The amount of living material and nutrients present in different trophic levels and soils at any given time are called, respectively.
Last Answer : The amount of living material and nutrients present in different trophic levels and soils at any ... and standing quality D. Biomass and standing crop
Description : The breakdown of detritus into smaller particles by earthworm is a process called (a) humification (b) fragmentation (c) mineralisation (d) catabolism
Last Answer : (b) fragmentation
Description : 5. The breakdown of detritus into small particles by detritivores is called a) Leaching b) Fragmentation c) Mineralisation d) Catabolism
Last Answer : b) Fragmentation
Description : A retired zookeeper owned a huge house with a very large and beautifully landscaped yard. The neighbors of the man drove past his home daily, and admired his arrangement of all the large trees and ... from them. Amazingly, not one person who lived in that area ever expressed any fe -Riddles
Last Answer : The retired zookeeper was also a professional topiary expert. Mixing together the best of his two worlds, he sculpted zoo animals from his fully-grown, healthy, living bushes in his front yard, much to the delight of his neighbors.
Description : he phenomenon of increase in the concentration of toxic substances at each trophic level in a food chain is called
Last Answer : biomagnification.
Description : Assertion: Detritus food chain begins with decomposers. Reason: Detrivores, like fungi and bacteria, are major decomposers in such food chains.
Last Answer : Assertion: Detritus food chain begins with decomposers. Reason: Detrivores, like fungi and bacteria, are ... and Reason are false, then mark (4)
Description : The layer of the marine biome where the animals are adapted to survive on detritus under even greater pressure is ………………..
Last Answer : The layer of the marine biome where the animals are adapted to survive on detritus under even greater ... the Disphotic layer (d) the Aphotic layer
Description : The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is A. 100 cm B. 110 cm C. 120 cm D. 150 cm
Last Answer : ANS: C
Description : The flow velocity in detritus tanks is A. 0.05 m/sec B. 0.09 m/sec C. 1.25 m/sec D. None of these
Last Answer : ANS: B
Description : In detritus tanks, A. Flow velocity is kept 0.09 m/sec B. Detention period is kept 3 to 4 minutes C. Organic and inorganic materials are separated D. All the above
Description : Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks. Consumers A D C Uptake Run off Soil solution B A B ... minerals Detritus (c) Detritus Rock minerals Producers Litter fall (d) Producers Litter fall Rock minerals Detritus
Last Answer : (c) Detritus Rock minerals Producers Litter fall
Description : Food chain in which microorganisms breakdown the food formed by primary producers is (a) parasitic food chain (b) detritus food chain (c) consumer food chain (d) predator food chain.
Last Answer : (b) detritus food chain
Description : Fine grit present in sewage is removed in the __________ during sewage treatment. (A) Grit chamber (B) Detritus tank (C) Trickling filter (D) Skimming tank
Last Answer : (B) Detritus tank
Description : During sewage treatment, effluent from which one of the following treatment units has minimum wt/vol amount of suspended solids? (a) Detritus channel (b) Primary sedimentation tank (c) Secondary sedimentation tank (d) Activated sludge process aeration tank
Last Answer : (d) Activated sludge process aeration tank
Description : 34. Decomposition rate is slower if detritus is ... b) Rich in Nitrogen b) Rich in lignin and chitin c) Rich in sugars d) Rich in fats and lipids
Last Answer : b) Rich in lignin and chitin
Description : 14. Decomposition rate is slower if detritus is ... a) Rich in Nitrogen b) Rich in lignin and chitin c) Rich in sugars d) Rich in fats and lipids
Description : What is a trophic level?
Last Answer : A trophic level is a position in a food chain or food web, defined by an organism's source of energy and nutrients.
Last Answer : A: A trophic level is a position in a food chain or food web that represents an organism's feeding status or its place in the flow of energy and nutrients through the ecosystem.
Description : What is the difference between a trophic level and a food chain?
Last Answer : A: A trophic level refers to the position of an organism in a food chain or web, while a food chain is a linear sequence of organisms through which energy and nutrients are transferred from one organism to another.
Description : Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem? -Biology
Last Answer : Yes, the impact Of removing all the Organisms in a trophic level will be different for different trophic levels. It will not be possible to remove any organism in any trophic level without causing damage to the ecosystem.
Description : What will happen if we kill all the organisms in one trophic level? -Biology
Last Answer : If we kill all the organisms in one trophic level, then transfer of energy as well as matter to next higher level will stop. It will lead to over- population at one particular level ... individuals. This would seriously disturb the food chain and can cause the collapse of an ecosystem even.
Description : Will the impact of removing all the organisms in a trophic level be different for different trophic levels ? Can the organisms of any trophic level be removed without causing any damage to the ecosystem ? -Biology
Last Answer : Yes, the impact of removing all the organisms in a trophic level will be different for different trophic levels. For example, on removing producers; herbivores would not be able to survive or ... to maintain the balance of the ecosystem the presence of organisms is necessary at each trophic level.
Description : What will happen if we kill all the organisms in one trophic level ? -Biology
Last Answer : The food chain would end and ecological balance would be affected. If the herbivores are killed, then the carnivores would not be able to get food and would die. If carnivores are killed, ... unsustainable level. If producers are killed, then the nutrient cycle in that area would not be completed.
Description : What is trophic level ?
Last Answer : Each level of the food chain is called trophic level.
Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends
Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.
Description : Assertion: Pyramid of energy may be upright or inverted. Reason :Only 20% of energy goes to next trophic level.
Last Answer : Assertion: Pyramid of energy may be upright or inverted. Reason :Only 20% of energy goes to next ... . D. If both assertion and reason are false.
Description : The trophic level of lion in a forest ecosystem is:
Last Answer : The trophic level of lion in a forest ecosystem is: A. `T_(3)` B. `T_(2)` C. `T_(4)` D. `T_(1)`
Description : Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Last Answer : Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem? A. Frog B. Phytoplankton C. Fish D. Zooplankton
Description : A bamboo plant is growing in a forest. What will be its trophic level?
Last Answer : A bamboo plant is growing in a forest. What will be its trophic level? A. First trophic level `(T_(1))` ... T_(3))` D. Fourth trophic level `(T_(4))`
Description : Percentage energy transferred to higher trophic level in food chain is
Last Answer : Percentage energy transferred to higher trophic level in food chain is A. `1%` B. `10%` C. `90%` D. `100%`
Description : Energy requirement for the maintenance of body with successively higher trophic level
Last Answer : Energy requirement for the maintenance of body with successively higher trophic level A. Decreases B. Increases C. Remains same D. Is always 10%
Description : How many trophic level are these in the following food chain phytoplankton-shrimp-perch-pike-osprey?
Last Answer : Need answer
Description : If 575250 calories of energy are available at the first trophic level calculate the number of calories available to the second third fourth trophic levels?
Last Answer : 2nd lvl - 57,5253rd lvl- 5,752.54th lvl- 575.25
Description : In a given community a grasshopper eat grass a bird eats the grasshopper and eats the bird. what is the trophic level of the grasshopper?
Last Answer : Primary Consumer
Description : What trophic level is an orchid?
Last Answer : Producer.
Description : What is a Salamander's trophic level?
Last Answer : Third trophic level. It eats insects.
Description : What would happen biologically if humans changed their trophic level position?
Last Answer : At the moment humans can be at different trophic levels depending on what they eat. A vegetarian is at the second trophic level as s/he eats only plants. Someone who ate only grazing animals would ... our coping with that. We see some evidence of this in isolated groups with restricted diets today.