Ecology And Env...

The physical components of environment are soil, water, air, light and pressure. These are called ____ components of environment.

The biotic components of an environment are the plants, animals (including humans) and ____.

________ is the special environment of an organism in which it lives and grows.

The entire world is divided into four categories. They are the atmosphere, the lithosphere, ________ and the biosphere.

The biosphere consists of three habitats. They are aquatic habitat, terrestrial habitat and ______.

_______ is the characteristic of living things which they develop over a period of time to survive and reproduce within the limits of a particular habitat.

The plants that encounter difficulty in acquiring water are called

Two examples of mesophyte plants with well developed root and root hair are:

Bipedal (two-footed) mode of locomotion develops in ______.

Body of most aquatic animals is compressed laterally to reduce

The other name for aerial adaptation is ____.

In order to live successfully in a particular habitat, plants and animals have special structures called ______.

The earth is divided into biomes based on the differences in

The depth of water and the amount of dissolved salts in the water classify the _________ ecosystem.

The plants which live in water are called aquatic plants or ______.

Pick out two human activities from among the following, which affect the habitat adversely.

_______ is the life supporting zone of earth where atmosphere, hydrosphere and lithosphere meet and make life possible.

A constant interaction between living and non-living components of the biosphere results in the transfer of food and

Producers are present at the base of the ecosystem. The energy captured by them is stored as

_____ are the green plants. They convert the solar energy into chemical energy during the process called photosynthesis.

The decomposers are also called ______ or reducers.

The disintegrating dead organic matter is called _______.

A ______ shows the process of food transfer taking place from the plants through a series of organisms.

The different steps or levels in a food chain are called ______.

The cyclic flow of nutrients between non-living environment and living organisms is called

Some microorganisms convert ammonia into nitrates. This process is called ______.