"Energy flow in a food chain is unidirectional" Justify this statement. -Science

1 Answer

Answer :

The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis.

Related questions

Description : Which of the following exhibits unidirectional flow in an ecosystem? (1) Light (2) Energy (3) Water (4) Biomass

Last Answer : (2) Energy Explanation: Ecosystems contain essentially two kinds of commodities: matter (nutrients) and energy. Material nutrients cycle through the biotic and abiotic parts of the ecosystem, available for ... Eventually, all of the energy that enters the ecosystem is lost in the form of heat.

Description : Which of the following exhibits unidirectional flow in an ecosystem ? (1) Light (2) Energy (3) Water (4) Biomass

Last Answer : Energy

Description : The textile industry is the only industry in the country which is self-reliant and complete in the value chain.' Justify the statement. -SST 10th

Last Answer : The textile industry is the only industry in India which is selfreliant and complete in value chain i.e. from the raw material to the highest value-added products. 1. The ... the increasing concern over environmental friendly products globally has also widened the opportunity for this industry.

Description : ”The textile industry is the only industry in the country which is self-reliant and complete in the value chain.” Justify the statement. -SST 10th

Last Answer : The textile industry occupies a unique position in Indian economy, because it contributes: (i) Significantly to industrial production (14 percent). (ii) It generates employment (35 million persons directly) ... in the value chain, i.e., from raw material to the highest value added products.

Description : Check valves are used (A) At high pressure (B) In bends (C) For controlling water flow (D) For unidirectional flow

Last Answer : (D) For unidirectional flow

Description : Check valve is used for __________ flow. (A) Very precise control of (B) Unidirectional (C) Multidirectional (D) None of these

Last Answer : (B) Unidirectional

Description : The _______ is a unidirectional protocol that has no flow or error control. A. Simplest B. Simplex C. TCP/IP protocol D. Simplest or Simplex

Last Answer : D. Simplest or Simplex

Description : Purpose of relief valve in a reciprocating pump is to (A) Protect the pump against developing excessive pressure (B) Facilitate unidirectional flow of liquid (C) Reduce the discharge pressure (D) Control the rate of discharge

Last Answer : (A) Protect the pump against developing excessive pressure

Description : Veins tend to have the following except: a) valves for unidirectional flow b) very elastic walls c) thin walls d) increasing size toward the heart

Last Answer : ANSWER: B -- very elastic walls

Description : It is an unidirectional device that blocks the current flow from cathode to anode   (A) SCR (B) PCR (C) VCR (D) DCR

Last Answer : It is an unidirectional device that blocks the current flow from cathode to anode SCR 

Description : Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial ... at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1

Last Answer : (C) Azeotropes obey Raoult's law at all temperature

Description : A concave mirror of focal length 15 cm can form a magnified, erect as well as inverted image of an object placed in front of it." Justify this statement stating the position of the object with respect to the pole of the mirror in both the cases for obtaining the images. -Science

Last Answer : For magnified and erect image the object is placed between pole P and focus F. For magnified and inverted image the object is placed either at focus or anywhere between F and C.

Description : “Resources are a function of human activities.” Justify this statement. -Social Science

Last Answer : natural resources are a free gift of nature water man made resources are used by the humility. resources are functions of human activities human being themselves are essential of the sources. they transform material available in our environment into resources and use them.

Description : In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer? Plants → Deer → Lion -Science

Last Answer : Here we will use the 10% law of transfer of energy. As, it is given that 100 J of energy is available to lion. Let the amount of enrgy available to deer be x Joules. According to 10% law, Energy available to lion ... y = 10000 J So, the energy available to plants, i.e., producer is 10,000J.

Description : “Food offers many examples of long distance cultural exchange.” Justify this statement. -SST 10th

Last Answer : Traders and travellers introduced new crops to the lands they travelled. Even ready' foodstuff in distant parts of the world might share common origins. It is believed that noodles travelled west ... such as potatoes, soya, groundnuts, maize, tomato, chillies had their origin in the Americas.

Description : Cable People: Are splitters really unidirectional?

Last Answer : A good splitter will take the signal from the in and equally split it to the two outs . It can also combine the two outs and send it to the in . Trying to send a signal from one ... . Cheap splitters will just have the center conductors soldered together, so in and outs are all the same.

Description : Origin of replication unidirectional -Biology

Last Answer : answer:

Description : The unidirectional property of a pn-junction is useful for its use as which thing? -General Knowledge

Last Answer : The answer is 'Rectifier'

Description : The unidirectional property of a pn-junction is useful for its use as which thing? -General Knowledge

Last Answer : answer:

Description : The unidirectional property of a pn-junction is useful for its use as which thing? -General Knowledge

Last Answer : answer:

Description : Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as Or Random unidirectional

Last Answer : Variation in gene frequencies within populations can occur by chance rather than by natural selection. ... flow C. Genetic drift D. Random mating

Description : When three-phase AC power is supplied to the device shown in the illustration, the output will be _____________. EL-0063 A. single-phase AC B. split-phase AC C. three-phase DC D. unidirectional DC

Last Answer : Answer: D

Description : The use of four diodes, in a full-wave bridge rectifier circuit, will __________. A. provide unidirectional current to the load B. allow a very high leakage current from the load C. convert direct current to alternating current D. offer high opposition to current in two directions

Last Answer : Answer: A

Description : Stacking antennas at various angles results in A. a more omnidirectional reception B. a more unidirectional reception C. a more omnidirectional reception D. an overall reception signal increase

Last Answer : A. a more omnidirectional reception

Description : The directivity pattern of an isotropic radiator is A. a figure-8 B. a sphere C. a unidirectional cardioid D. a parabola

Last Answer : B. a sphere

Description : A vertical loop antenna has a A. unidirectional radiation pattern in the horizontal plane B. unidirectional radiation pattern in the vertical plane C. omnidirectional radiation pattern in the horizontal plane D. a bidirectional radiation pattern in the horizontal plane

Last Answer : D. a bidirectional radiation pattern in the horizontal plane

Description : The parasitic element of an antenna system will A. decrease its directivity B. increase its directivity C. give the antenna unidirectional properties D. both B and C

Last Answer : D. both B and C

Description : What is the radiation characteristic of a dipole antenna? A. Omnidirectional B. Bidirectional C. Unidirectional D. Hemispherical

Last Answer : B. Bidirectional

Description : Discone radiation pattern is ______. A. omnidirectional/vertical polarized B. unidirectional C. bidirectional D. figure of eight

Last Answer : A. omnidirectional/vertical polarized

Description : Best description of a collinear and broadside antenna radiation pattern. A. Bidirectional B. Perfect circle C. Unidirectional D. Omnidirectional

Last Answer : A. Bidirectional

Description : Radiation characteristics of a dipole A. Figure of eight B. Omnidirectional C. Bidirectional D. Unidirectional

Last Answer : C. Bidirectional

Description : Radiation pattern of a discone. A. Unidirectional B. Bidirectional C. Omnidirectional D. Figure of eight

Last Answer : C. Omnidirectional

Description : The unidirectional property of a pn-junction is useful for its use as which thing

Last Answer : Rectifier

Description : Binary distillation involves the mass transfer by __________ at the gas￾liquid interface. (A) Unidirectional diffusion from liquid to gas phase (B) Unidirectional diffusion from gas to liquid phase (C) Either 'a' or 'b' (D) A counter diffusion at an almost equal molar rate

Last Answer : (D) A counter diffusion at an almost equal molar rate

Description : A component that allows only unidirectional current to pass through it is A. resistor B. inductor C. transformer D. diode

Last Answer : diode

Description : Microwaves are_________. A) omnidirectional B) unidirectional C) bidirectional D) none of the above

Last Answer : unidirectional

Description : Radio waves are _________. A) omnidirectional B) unidirectional C) bidirectional D) none of the above

Last Answer : omnidirectional

Description : A parabolic dish antenna isa(n)_______ antenna. A) omnidirectional B) bidirectional C) unidirectional D) horn

Last Answer : unidirectiona

Description : A ring SONET network can be _________. A) unidirectional B) bidirectional. C) either (a) or (b) D) neither (a) nor (b)

Last Answer : bidirectional.

Description : Which of the following is NOT true about User Datagram Protocol in transport layer? a. Works well in unidirectional communication, suitable for broadcast information. b. It does three way ... File System d. The lack of retransmission delays makes it suitable for real-time applications

Last Answer : b. It does three way handshake before sending datagrams

Description : Cloud computing is a _______ system and it is necessarily unidirectional in nature. a) stateless b) stateful c) reliable d) all of the mentioned

Last Answer : stateless

Description : Cloud computing is a _______ system and it is necessarily unidirectional in nature. a) stateless b) stateful c) reliable d) all of the mentioned

Last Answer : stateless

Description : The tide produced in an ocean when the pull on the Earth by the Sun and the Moon is unidirectional is called?

Last Answer : Spring tide

Description : In SONET, OC-1 stands for: a. Optical Carrier level one b. Optical Coupler unidirectional c. Optical Channel one d. Optical Cable type 1

Last Answer : a. Optical Carrier level one

Description : Cross resistance among different members of the following class of antimicrobials is absent / incomplete or unidirectional: A. Aminoglycosides B. Macrolides C. Tetracyclines D. Both ‘B’ and ‘C’ are correct

Last Answer : A. Aminoglycosides

Description : Unidirectional tandem gene arrays are significant in ________ a. Increase in recombinant gene product with increasing plasmid number. b. Increase in recombinant gene product without increasing plasmid ... increasing plasmid numbers. d. Decrease in strong promotor with increase in plasmid number

Last Answer : b. Increase in recombinant gene product without increasing plasmid number.

Description : With the help of neat diagram, explain the method to obtain unidirectional polarity in train lighting.

Last Answer : Method to obtain unidirectional polarity in train lighting: Dynamo has rocker arm mounted on the shaft, friction tight. When the direction of rotation of the shaft is clockwise, terminal X (positive ... polarities will be obtained as shown in figure. Thus, unidirectional polarity is obtained.

Description : In a d.c. motor, unidirectional torque is produced with the help of

Last Answer : Commutator provides unidirectional torque and pulsating dc

Description : Explain three phase half wave controller or three phase unidirectional controller.

Last Answer : Three phase half wave controller or unidirectional controller: