Considering the Earth's ecosystem, the producers are called

Considering the kind of symbiosis, the classification of parasites includes

In the biosphere, the principal decomposers are

The plants are considered as basic producers in the ecosystem which is said to be

The food web is a network of

A balance between resources and the number of individuals is maintained by

The petroleum burning in the air leads to the

The process in which nitrites and nitrates are reduced into nitrogen gas by the denitrification of bacteria is called

The parasites that live on the surface of the body of the host to get the food are called

The movement of inorganic compounds and elements is classified as

A group of the organism of same species at the same place and the same time is

Considering the following, the biotic components of the ecosystem includes

An aquarium is an example of

The one of major environmental issue is

The lice, leeches, and mosquitoes are considered as examples of

Ectoparasite are

Which of the following statements is not true about parasitism?

The nitrates are utilized for protein making and are absorbed by

Mercury and lead can cause

Carbon dioxide is released back to the environment by

The carbon cycle is perfect as carbon is returned to the atmosphere as soon as it is

The living factors of an ecosystem are called

The carnivores that are fed on secondary carnivores are called

Relationship between Rhizobium bacteria and leguminous plants is an example of

In a food chain, the first trophic level is made of

The autotrophs present in an ecosystem are called

The parasites that live inside the host's body are called

Recycling of one ton of paper can save

In 2010 the human population was

The graphic representation of the number of individuals per unit area is