MCQ-1: Organisms and their Environment

The size of the arrows shows the approximate, relative amounts of energy passing from one stage to the next in a food chain.
Which chain represents the energy losses between trophic levels?

The diagram shows a food web.

Which organisms occupy the same trophic level?

The diagram shows the flow of energy in a food chain.
Which organism is the producer in the food chain?

The diagram shows part of a section through a leaf.

The arrow represents part of the

The diagram shows part of the carbon cycle.

Which process occurs at Y?

The diagram shows part of the water cycle.
Where is osmosis occurring?

The diagram shows a food web.

Which of the following is a food chain in this web?

In one habitat, hyaenas eat antelopes and antelopes eat grass.
What is the source of energy for the grass?

A single tree is food for a large population of caterpillars. Several small birds eat the caterpillars. A bird of prey eats the small birds.
Which diagram shows the pyramid of numbers for this food chain?

The diagram shows part of the carbon cycle.

Which process is taking place at X?

The diagram shows part of the water cycle.
Which arrow represents condensation?

The diagram shows a food chain.
Which organism is the producer?

Which diagram shows the flow of energy in an ecosystem?

The diagram shows a food web.

Fungi are decomposers. What is their importance in this food web?

The diagram shows a food chain.
grass → wildebeest → lion
What is the original source of energy used in this food chain?

What may happen to the Sun’s energy that reaches the Earth?

The diagram shows energy flow through a food chain from X to Y.

By which processes is energy lost between X and Y?

The diagram shows the movement of carbon atoms in part of the carbon cycle. The directions of movement are not shown.

How many of the groups of living organisms in the diagram return carbon dioxide to the atmosphere?

The diagram shows part of the water cycle.

Which process in living plants is responsible for returning water vapour to the air at P?

Which statement explains why the energy flow in a food chain is in one direction?