Ecology & Environmental Balance

The unit of living organisms and their environment interacting together is called ...

Organisms that can make their own food through photosynthesis are called ...

The sequence of energy transfer from producers to the next consumer level is called a ...

A relationship between two organisms in which both benefit is called ... symbiosis.

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

The water cycle in nature begins with the process of ...

Organisms that break down dead remains into nutrients are called ...

The higher the trophic level in an energy pyramid, ...

Rhizobium bacteria living on legume roots play a role in ...

The process by which water vapor condenses into droplets in the atmosphere is called ...

The gradual change of an ecosystem toward a stable community is called ...

Succession on land previously burned or logged is called ... succession.

High biodiversity in an ecosystem serves to ...

The greenhouse effect is strengthened mainly by increased ... gas.

In a food web, an organism may occupy more than one trophic level because ...

If producers store 10,000 kJ of energy, the energy available to secondary consumers (third trophic level) is about ...

Excess fertilizer washed into water bodies can cause ...

Pesticides such as DDT can accumulate in the tissues of organisms at high trophic levels. This phenomenon is called ...

Which of the following is a negative impact of illegal logging on environmental balance?

In an ecosystem, if the snake population drops sharply, the most likely effect is ...