The biological amplification of DDT in the various trophic levels is known as

The biological amplification of DDT in the various trophic levels is known as
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The biological amplification of DDT in the various trophic levels is known as A. Green house ... B. biomagnification C. Eutrophication D. Pollution.
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The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. ... Decreases C. Increases or decreases D. Remains constant

The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. Remain same B. Decreases in glaciers C. Increases D. Unpredictable

Increase in concentration of the toxicant at successive trophic levels is known as:

Description : Increase in concentration of the toxicant at successive trophic levels is known as:

Last Answer : Increase in concentration of the toxicant at successive trophic levels is known as: ... C. Biotransformation D. Biogeochemical cycling.

Increase in concentration of the toxicant at successive trophic levels is known as:

Description : Increase in concentration of the toxicant at successive trophic levels is known as:

Last Answer : Increase in concentration of the toxicant at successive trophic levels is known as ... C. Eutrophication D. Accelerated eutrophication

Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Description : Increase in concentration of the toxicant at  successive trophic levels is known as (a) biotransformation  (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Last Answer : (c) biomagnification

Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Description : Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Last Answer : (c) biomagnification

ECE Board Exam March 1996 The expander in a companding device provides ___________. A. greater amplification for low signal levelsB. less amplification for low signal levels C. greater amplification for high signal levels D. lesser pressure for transmission

Description : ECE Board Exam March 1996 The expander in a companding device provides ___________. A. greater amplification for low signal levels B. less amplification for low signal levels C. greater amplification for high signal levels D. lesser pressure for transmission

Last Answer : B. less amplification for low signal levels

Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Description : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Last Answer : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV ... D. X is not correct, Y is correct.

Which of the following can be used for biological control of mosquitoes? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Description : Which of the following can be used for biological control of mosquitoes? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Last Answer : (2) Gambusia Explanation: Biological control is the use of natural enemies to manage the mosquito population. Effective biocontrol agent s include predatory fish that teed on mosquito larvae such as Gambusia affinis (mosquitofish) and some cyprinids (Carps and minnows).

Which of the following can be used for biological control of mosquitoes ? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Description : Which of the following can be used for biological control of mosquitoes ? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Last Answer : Gambusia

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

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.

What are trophic levels? Give an example of a food chain and state the different trophic levels in it. -Biology

Description : What are trophic levels? Give an example of a food chain and state the different trophic levels in it. -Biology

Last Answer : Each step or level of the food chain forms a trophic level. Consider the following food chain:

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

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.

What are trophic levels ? Give an example of food chain and state the different trophic levels in it. -Biology

Description : What are trophic levels ? Give an example of food chain and state the different trophic levels in it. -Biology

Last Answer : Trophic Levels : The various steps in a food chain at which the transfer of food (or energy) takes place are called trophic levels.Example : A food chain operating in a ... . Grasshopper represents second trophic level. Frog represents third trophic level. Eagle represents fourth tropic level.

what is meant by trophic levels?

Description : what is meant by trophic levels?

Last Answer : answer

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

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.

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

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.

Trophic levels are formed by

Description : Trophic levels are formed by

Last Answer : Trophic levels are formed by A. Plants B. animals C. organisms linked in food chain D. carnivores

The amount of living material and nutrients present in different trophic levels and soils at any given time are called, respectively.

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

Different biomes have different animals and plants on the same trophic levels. 

Description : Different biomes have different animals and plants on the same trophic levels. 

Last Answer : Identify the correct correlation: A - Different biomes have different animals and plants on the same ... R is not the correct explanation of A.

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?

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

How many trophic levels can monkeys occupy in a food chain?

Description : How many trophic levels can monkeys occupy in a food chain?

Last Answer : Monkeys can only occupy one which is the secondary consumer

Why are the numbers of trophic levels limited?

Description : Why are the numbers of trophic levels limited?

Last Answer : At each trophic level in a food chain, a large portion of theenergy is utilized for the maintenance of organisms which occur atthat trophic level and lost as heat. As a result of this, organismsin each trophic level pass on less and less energy to the nexttrophic levels, than they receive.

Why are the numbers of trophic levels limited?

Description : Why are the numbers of trophic levels limited?

Last Answer : At each trophic level in a food chain, a large portion of theenergy is utilized for the maintenance of organisms which occur atthat trophic level and lost as heat. As a result of this, organismsin each trophic level pass on less and less energy to the nexttrophic levels, than they receive.

Plants belong to the following category of trophic levels C A. Consumers B. Heterotrophs C. Autotrophs D. Primary consumers

Description : Plants belong to the following category of trophic levels C A. Consumers B. Heterotrophs C. Autotrophs D. Primary consumers

Last Answer : Autotrophs

Plants belong to the following category of trophic levels C A. Consumers B. Heterotrophs C. Autotrophs D. Primary consumers

Description : Plants belong to the following category of trophic levels C A. Consumers B. Heterotrophs C. Autotrophs D. Primary consumers

Last Answer : Autotrophs

Match the trophic levels with their correct species examples in grassland ecosystem. (A) Fourth trophic level (i) Crow (B) Second trophic level (ii) Vulture (C) First trophic level (iii) Rabbit (D) Third trophic level (iv) Grass Select the correct option. (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (iii) (ii) (i) (iv) (c) (iv) (iii) (ii) (i) (d) (i) (ii) (iii) (iv)

Description : Match the trophic levels with their correct species examples in grassland ecosystem. (A) Fourth trophic level (i) Crow (B) Second trophic level (ii) Vulture (C) First trophic level (iii) Rabbit (D) Third trophic level (iv) Grass Select the ... i) (iv) (c) (iv) (iii) (ii) (i) (d) (i) (ii) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

Consider the following statements concerning food chains. A. Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. B. Removal of most of the carnivores resulted in an increased population of deers. C. The length of food chains is generally limited to 3-4 trophic levels due to energy loss. D. The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct? (a) A, D (b) A, B (c) B, C (d) C, D

Description : Consider the following statements concerning food chains. A. Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. B. Removal of most of the carnivores resulted in an increased population of deers. C. ... are correct? (a) A, D (b) A, B (c) B, C (d) C, D

Last Answer : (c) B, C

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time? (a) Sparrow (b) Lion (c) Goat (d) Frog

Description : Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time? (a) Sparrow (b) Lion (c) Goat (d) Frog

Last Answer : (a) Sparrow

Decrease in strength of signal is known as A. tuning B. modulation C. attenuation D. amplification

Description : Decrease in strength of signal is known as A. tuning B. modulation C. attenuation D. amplification

Last Answer : attenuation

In the graph shown below, the region in which frequency ratio (ω/ω n ) > √2 is known as____ A. Amplification region B. Isolation region C. Spring controlled region D. None of the above

Description : In the graph shown below, the region in which frequency ratio (ω/ω n ) > √2 is known as____ A. Amplification region B. Isolation region C. Spring controlled region D. None of the above

Last Answer : B. Isolation region

What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem? -Biology

Description : What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem? -Biology

Last Answer : The accumulation of harmful chemicals in the body of living organisms at different trophic levels in a food chain is called biological magnification. Yes, the concentration of these harmful chemicals ... at the last trophic levels which is mostly of the top carnivores (quaternary consumers).

What is biological magnification ? Will the levels of this magnification be different at different levels of the ecosystem ? -Biology

Description : What is biological magnification ? Will the levels of this magnification be different at different levels of the ecosystem ? -Biology

Last Answer : Biological magnification : The increase in concentration of harmful chemical substances like pesticides in the body of living organisms at each trophic level of a food chain is called biological ... topmost trophic level. It would affect their biological process such as growth, reproduction, etc.

Which of the following best represents the hierarchy of levels of biological classification? A- Phylum, kingdom, class, order, genus, species, family B- .Kingdom, phylum, class, order, family, genus, species C- .Kingdom, phylum, family, class, order, genus, species D- Class, order, kingdom, phylum, family, genus, species

Description : Which of the following best represents the hierarchy of levels of biological classification? A- Phylum, kingdom, class, order, genus, species, family B- .Kingdom, phylum, class, order, family, genus, ... family, class, order, genus, species D- Class, order, kingdom, phylum, family, genus, species

Last Answer : .Kingdom, phylum, class, order, family, genus, species

What is the study of effect of light on various biological life process? -Do You Know?

Description : What is the study of effect of light on various biological life process? -Do You Know?

Last Answer : answer:

$ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive substances used in biological studies are

Description : $ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive substances used in biological studies are

Last Answer : $ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive ... . If both As and R are wrong.

What is the study of effect of light on various biological life process?

Description : What is the study of effect of light on various biological life process?

Last Answer : Photobiology

Explain the term Gene amplification. -Biology

Description : Explain the term Gene amplification. -Biology

Last Answer : An increase in the number of copies of a gene. There may also be an increase in the RNA and protein made from that gene. Gene amplification is common in cancer cells, and some amplified genes may cause cancer cells to grow or become resistant to anticancer drugs.

What is gene amplification? -Biology

Description : What is gene amplification? -Biology

Last Answer : answer:

What is gene amplification? -Biology

Description : What is gene amplification? -Biology

Last Answer : answer:

What is Amplification Modulation ?

Description : What is Amplification Modulation ?

Last Answer : The modulation in which the amplitude of the carrier signal changes according to the modulating frequency is called amplitude modulation.

What is the meaning of the word 'Amplification' ?

Description : What is the meaning of the word 'Amplification' ?

Last Answer : The word 'amplification' means - amplification.

Amplification of an mp3 song by a program, will the quality drop?

Description : Is it possible to amplify songs by the program (they are recorded very quietly) without a decrease in quality?

Last Answer : There are two variants - simple - in the editor you will increase the volume, but you will also increase it in case of noise ... - more complex - in the editor you will increase only ... frequencies) the second can improve it - but also make it worse (if inappropriate parameters are set).

Cancer cells may become resistant to amethopterin by (A) Developing mechanisms to destroy amethopterin (B) Amplification of dihydrofolate reducatse gene (C) Mutation in the dihydrofolate reductase gene so that the enzyme is no longer inhibited by amethopterin (D) Developing alternate pathway of thymidylate synthesis

Description : Cancer cells may become resistant to amethopterin by (A) Developing mechanisms to destroy amethopterin (B) Amplification of dihydrofolate reducatse gene (C) Mutation in the dihydrofolate reductase ... is no longer inhibited by amethopterin (D) Developing alternate pathway of thymidylate synthesis

Last Answer : Answer : B

Amplification of dihydrofolate reductase gene in a cancer cell makes the cell (A) Susceptible to folic acid deficiency (B) Less malignant (C) Resistant to amethopterin therapy (D) Responsive to amethopterin therapy

Description : Amplification of dihydrofolate reductase gene in a cancer cell makes the cell (A) Susceptible to folic acid deficiency (B) Less malignant (C) Resistant to amethopterin therapy (D) Responsive to amethopterin therapy

Last Answer : Answer : C

Ras proto-oncogene is converted into oncogene by (A) A point mutation (B) Chromosomal translocation (C) Insertion of a viral promoter upstream of the gene (D) Gene amplification

Description : Ras proto-oncogene is converted into oncogene by (A) A point mutation (B) Chromosomal translocation (C) Insertion of a viral promoter upstream of the gene (D) Gene amplification

Last Answer : Answer : A

Amplification of dihydrofolate reductase gene may be brought about by (A) High concentrations of folic acid (B) Deficiency of folic acid (C) Low concentration of thymidylate (D) Amethopterin

Description : Amplification of dihydrofolate reductase gene may be brought about by (A) High concentrations of folic acid (B) Deficiency of folic acid (C) Low concentration of thymidylate (D) Amethopterin

Last Answer : Answer : D

Antibody diversity arises from (A) Gene amplification (B) Gene re-arrangement (C) Alternative splicing (D) All of these

Description : Antibody diversity arises from (A) Gene amplification (B) Gene re-arrangement (C) Alternative splicing (D) All of these

Last Answer : Answer : B

DNA amplification is done in the machine

Description : DNA amplification is done in the machine

Last Answer : Ans. Thermocycler

The scientific principle involved in a laser is (a) Newton’s laws of motion (b) Faraday’s laws of induction (c) Motion of a charges particle in an electromagnetic field (d) Amplification by population inversion

Description : The scientific principle involved in a laser is (a) Newton’s laws of motion (b) Faraday’s laws of induction (c) Motion of a charges particle in an electromagnetic field (d) Amplification by population inversion

Last Answer : Ans:(d)