Balance of nature questions | form two Biology

The diagram below represents a feeding relationship in an ecosystem.The arrow → means “eaten by”

1. What is the name of the feeding relationship represented above?
2. What does the sequence: Plant → Grasshopper → Lizard represent?
3. Name the organisms which are:

1. Primary producers
2. Primary consumers
3. Secondary consumers:

Define the following terms:

1. Ecosystem
2. Habitat
3. Biotic Factors

A group of interdependent organisms living in an environment is called:

1. community
2. ecology
3. ecosystem
4. population

The diagram below represents the different trophic levels in the ecosystem.Study it and answer the questions that follow.

Mention a trophic level represented by each letter in the diagram.

A,B,C,D,E

The diagram below represents the different trophic levels in the ecosystem.Study it and answer the questions that follow.

1. Mention a trophic level represented by each letter in the diagram.A,B,C,D,E
2. Why do the trophic levels form a pyramid shape?
3. State the role of the organisms in the trophic level represented by the letter E in the diagram.

1. Distinguish between a parasite and a predator.
2. Explain the meaning of the following ecological terms.

1. Food chain
2. Food web
3. Community
4. Population

1. Give three reasons which account for the pyramidal energy transfer diagrams in any ecosystem.
2. Distinguish between monoculture and crop rotation

1. What is food chain?
2. Below is a list of organisms occupying a certain habitat: Hawklocust,hen, lizard and wild cat.

1. Construct a food web using these organisms
2. From the food web you have constructed, identify the differnt food chains.
3. Mention two groups of organisms which must be included in the food web to balance the ecosystem.

1. Briefly state four types of trophic levels found in food web
2. Give two examples of organisms for each trophic level you named in (a)

Mutual interaction between two species is described by which of the following characteristic
A Both live as parasite
C Both benefit and flourish
E Both neither benefits for is harmed
B Both may be harmed
D One is harmed and the other benefits