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Recent questions and answers in Ecology and Environment

Questions >> JEEMAIN and NEET >> Biology >> Ecology and Environment

Which of the following organisms is likely to have more concentration of DDT in its body?

answered May 2, 2019 by sukhachandiwala

2 answers

Plants of endangered species are conserved through:-

answered Jan 31, 2019 by bihukarmakar

2 answers

mutualism means that both the species gets benefitted but i want to know that

asked Nov 9, 2017 by shivangsharma9451

0 answers

The term ' Biocoenosis ' was proposed by

answered Jul 27, 2017 by ashwinip732

2 answers

Which of the following region has maximum diversity?

answered Mar 15, 2017 by harshvardhan0095

2 answers

According to central pollution central board (CPCB) which size of particulate matter are responsible for causing the greatest harm to human health?

answered Apr 2, 2014 by sreemathi.v

1 answer

Correct figure representing the concentration of DDT at different trophic levels at Victoria lake:-

answered Apr 2, 2014 by sreemathi.v

1 answer

Maximum green house gases are released by which country :-

answered Apr 2, 2014 by sreemathi.v

1 answer

The cutting of trees from the forests of hill near catchment area

answered Apr 2, 2014 by sreemathi.v

1 answer

Acidic rain is due to increase in atmospheric concentration of :-

answered Apr 2, 2014 by sreemathi.v

1 answer

Which of the following gas cause 'green house effect'

answered Apr 2, 2014 by sreemathi.v

1 answer

The term 'Biomagnification' refers to :-

answered Apr 2, 2014 by sreemathi.v

1 answer

In tertiary water treatment,for the removal of pathogens which substance can be used?

answered Apr 2, 2014 by sreemathi.v

1 answer

Destruction of stratospheric ozone is due to

answered Apr 2, 2014 by sreemathi.v

1 answer

World summit for sustainable development was held in 2002 at:-

answered Apr 2, 2014 by sreemathi.v

1 answer

What is the total no of biodiversity hot spots

answered Apr 2, 2014 by sreemathi.v

1 answer

Saving biodiversity so as to presence the resource provided by them is which argument of biodiversity conservation :-

answered Apr 2, 2014 by sreemathi.v

1 answer

Due to extinction of pollinator bee,a plant with obligate mutualism with this bee got extinct.This can be placed in which cause of extinction?

answered Apr 2, 2014 by sreemathi.v

1 answer

High species diversity:-

answered Apr 2, 2014 by sreemathi.v

1 answer

According to an estimate by Robert May, total species diversity is about:

answered Apr 2, 2014 by sreemathi.v

1 answer

Mild grazing in grassland by herbivores:-

answered Apr 2, 2014 by sreemathi.v

1 answer

Frequent blooms in a pond indicate:-

answered Apr 2, 2014 by sreemathi.v

1 answer

Chipko movement is related to :-

answered Apr 2, 2014 by sreemathi.v

1 answer

Which type of act has been formed for restriction & prohibition on hunting of animals & protection of specified plants?

answered Apr 2, 2014 by sreemathi.v

1 answer

Which of the following acts as a reservoir for phosphorus:-

answered Apr 1, 2014 by sreemathi.v

1 answer

Which of the following is a sedimentary cycle :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Amount of nutrients ,such as carbon,nitrogen,phosphorus,calcium etc present in soil at any given time is :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Succession taking in water :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Final community which stays in equillibrium with the environment is called :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Which of the following acts as a reservoir of nutrients in soil

answered Apr 1, 2014 by sreemathi.v

1 answer

Limitation of ecological pyramid is/are:-

answered Apr 1, 2014 by sreemathi.v

1 answer

In which process of decomposition enzymatic conversion of the decomposing detritus to simpler compound & inorganic substances occur?

answered Apr 1, 2014 by sreemathi.v

1 answer

Sources of energy in deep sea water is/are:-

answered Apr 1, 2014 by sreemathi.v

1 answer

Which one of the following statements for pyramid of energy is incorrect,where as the remaining 3 are correct?

answered Apr 1, 2014 by sreemathi.v

1 answer

An ecosystem comprising of producers,herbivores & carnivores is an incomplete ecosystem.It doesnot include

answered Apr 1, 2014 by sreemathi.v

1 answer

Mass of living matter at a trophic level in an area at any time is called:-

answered Apr 1, 2014 by sreemathi.v

1 answer

A food web:-

answered Apr 1, 2014 by sreemathi.v

1 answer

Which statement is true about this food chain :-Grass $\rightarrow$ Rabbit $\rightarrow$ Snakes $\rightarrow$ Hawks

answered Apr 1, 2014 by sreemathi.v

1 answer

If 2 species compete for same resource,they could avoid competition by choosing different times for feeding or different foraging patterns.This phenomenon is called :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Biological equilibrium is an equilibrium between

answered Apr 1, 2014 by sreemathi.v

1 answer

Annual net productivity of a biosphere is approx.equal to :

answered Apr 1, 2014 by sreemathi.v

1 answer

Which of the following is correct formula for GPP(Grass primary productivity)[NPP-Net primary productivity,R-Respiratory losses]

answered Apr 1, 2014 by sreemathi.v

1 answer

Autotrophic components of a pond ecosystem include

answered Apr 1, 2014 by sreemathi.v

1 answer

Optical distribution of different species occupying different levels is :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Functional unit of nature is :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Phytophagous insects show which kind of interaction with plants

answered Apr 1, 2014 by sreemathi.v

1 answer

Biological control method is based on which type of interaction?

answered Apr 1, 2014 by sreemathi.v

1 answer

Interaction is detrimental to both species is :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Mutualism can be represented as :-

answered Apr 1, 2014 by sreemathi.v

1 answer

Normal growth graph in a population is :-

answered Apr 1, 2014 by sreemathi.v

1 answer

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