Ecology Questions

Consider the following statement $(A)\text{–}(D)$ with blanks. Which option gives the correct fill ups?$(A)$ Bears go into $(1)$ during winter to $(2)$ cold weather.$(B)$ A conical age pyramid with a broad base represents $(3)$ human population.$(C)$ A wasp pollinating a fig flower is an example of $(4)$.$(D)$ An area with high levels of species richness is known as $(5)$.

The breakdown of detritus into smaller particles by earthworm is a process called:

Both hydrarch and xerarch successions lead to:

The logistic population growth is expressed by the equation:

A biologist studies a population of rats. Natality = 250, Mortality = 240, Immigration = 20, Emigration = 30. The net increase in population is:

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

Consider the following statements $(A-D)$ about organic farming:$A.$ Utilizes genetically modified crops like Bt cotton.$B.$ Uses only naturally produced inputs like compost.$C.$ Does not use pesticides and urea.$D.$ Produces vegetables rich in vitamins and minerals.Which of the above statements are correct?

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:

Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?

Chipko movement was launched for the protection of:

DDT residues are rapidly passed through the food chain causing biomagnification because DDT is:

Montreal Protocol aims at:

The correct sequence of plants in a hydrosere is:

Steps taken by the Government of India to control air pollution include:

A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation:

Interpretations:
1) "B" is earlier pyramid and shows stabilised growth rate.
2) "B" is more recent showing that population is very young.
3) "A" is the earlier pyramid and no change has occurred in the growth rate.
4) "A" is more recent and shows slight reduction in the growth rate.

Tiger is not a resident in which one of the following national parks?

Which one of the following has maximum genetic diversity in India?