Biology quiz - Enviroment

1

What is an ecosystem?

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There are 4 different types of bacteria involved in the nitrogen cycle. Which type of bacteria breaks down proteins and urea and turns them into ammonia?

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What does each bar of a pyramid of biomass stand for?

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Why is carbon monoxide poisonous?

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What is the name of the bacteria that turns nitrates back into Nitrogen gas?

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What percentage of the atmosphere is Nitrogen gas?

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Why do plants need nitrogen?

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Here is a food chain:
dandelion ----> rabbit ----> fox ----> flea. Which is the tertiary consumer

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Only 10% of energy is transferred from one trophic level to another. Why is this?

1

All the species in a food web are interdependent. This means if one species changes it doesn't affect the others.

Quiz am Biology quiz - Enviroment, erstellt von Bronte Penney am 29/12/2013.

Biology quiz - Enviroment

What is an ecosystem?

There are 4 different types of bacteria involved in the nitrogen cycle. Which type of bacteria breaks down proteins and urea and turns them into ammonia?

What does each bar of a pyramid of biomass stand for?

Why is carbon monoxide poisonous?

What is the name of the bacteria that turns nitrates back into Nitrogen gas?

What percentage of the atmosphere is Nitrogen gas?

Why do plants need nitrogen?

Here is a food chain: dandelion ----> rabbit ----> fox ----> flea. Which is the tertiary consumer

Only 10% of energy is transferred from one trophic level to another. Why is this?

All the species in a food web are interdependent. This means if one species changes it doesn't affect the others.

Here is a food chain:
dandelion ----> rabbit ----> fox ----> flea. Which is the tertiary consumer