Which is the breakdown of the proteins of dead organisms to ammonia?

Organisms that make their own food with help of sunlight, CO2 and H2O are called_________

How many tanneries are operating in Kasur City?

Upper layer of atmosphere is called ________

A group of organisms which can interbreed freely in nature to produce fertile offspring is called________

Which of the following organisms are decomposers?

At which trophic level in a food chain, carnivores get food?

Which of the following in not an example of greenhouse gas?

A group of organisms, similar to one another, which can interbreed in nature and produce fertile offspring are called _______________

The base of food chain is always formed by____________

In 1927_________ developed the concept of ecological pyramids.

In the food chain “grass- Rabbit-Fox-Bear-Mushroom”, how many types of decomposers are present?

Fungi digest the dead organic matter with the help of _________

Living of nitrogen fixer bacteria in the root nodules of leguminous plants is an example of _____

The perfect cycle is ___________

Nitrogenous waste includes_______

Pakistan growth rate in1991 was _______

More than normal denitrification __________the richness of soil.

Flow of energy is always ___________

Which one of the following in not a temporary parasite?

The major process that brings carbon from atmosphere into living world is ___________

Plants show competition for__________

Scientists fear that sea level is rising upto ______ per year.

Which form of Nitrogen is taken by the producers of the ecosystem?

Habitat is an example of _______

IPCC stands for _________

Which of the following is the abiotic component of an ecosystem?

Nitrogen is an important component of _____________

According to estimate at the current rate of increase, the average global temperature will go upto by _____ in the next 100 years.

Which one of the following is not an endoparasite?

The type of symbiotic relationship in which one number get benefit and other is unaffected is called___________

The temperature of Earth’s surface has increased________ per decade in the last 30 years

An organism that actively hunts other organisms is called____________

Abiotic component of ecosystem is _________________

Water, soil, air, temperature, wind and sunlight are example of ___________

A relationship between two organisms in which individual of one species may kill and eat individuals of others species is called________________

When living and non-living interact to produce a stable system in which exchange of material with flow of energy takes place, it forms a/an_________

An aquarium is an example of ___________ecosystem.

_______ people are at risk of dengue.

The lowest trophic level of an ecosystem always includes___________

Recycling of One Ton paper can save___________

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called_____

Which one is an example of epiphyte?

The type of environment in which a particular species lives is called___________

________ atom is the principal building block of many kind of biomolecules.

The self-sufficient unit of an environment that is formed as a result of interaction between its biotic community and its abiotic components is known as_____________

The utilization of nitrates by organisms is called___________

A relationship between species in which both species benefit is called________

Which one is not an example of abiotic factor?

Graphic representation of the number of individuals per unit area at various trophic levels of a food chain is called_____________

In 2003, a survey on tanneries in Kasur city showed that __________ of residents suffered from cancer infections of kidney or loss of eyesight.

The materials flow from one trophic level to the next by means of ________

The thickness of biosphere is ______________

It is estimated that Maldives might become uninhabitable within________

The current level of urbanization in Pakistan is about __________ which is not high by global standards.

When we eat the onion, our trophic level is _________

_______ get solar energy and transform it into chemical energy by the process of photosynthesis.

Since 1800, amount of nitrous oxide has increased about_________

The consumers that eat animals flesh as well as plants and plants products are called_______

Habitat destruction can result in a loss of _______________

A network of all the feeding relationship in an ecosystem is called________

In an ecosystem the flow of _____________ is on way, while_________ is/are constantly recycled.

Since 1800, amount of CO₂ in atmosphere has increased about______

In the food chain “tree-caterpillar-robin-hawk-coyote”, which is secondary consumer?

Which one of the following is not as example of fossil fuels?

Which is an ectoparasite?

An example of Carnivore plants is_______

Identify the correctly matched pair________________

Organisms in the ecosystem that are responsible for the recycling of plant and animal wastes are_________

The type of symbiotic relationship in which one member get benefit and other is harmed is called___________

The favorable variation tends to be ___________

The living organisms which cannot prepare their own food but obtain ready made food from others are called_______

A symbiotic interaction in which both partners get benefits is ________

An epiphyte is an example of ___________