Ecology (LC 2026) (Leaving Cert Biology): Quizzes

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What is the biosphere?

Part of planet containing living organisms

How many organisms must be involved for competition to occur?

2 or more

What is the key difference in contest competition?

Produces one winner and one loser

What happens at each stage of a food chain?

Energy is lost

What time period do climatic factors concern?

Long period of time

In symbiosis, how many organisms must benefit?

At least one

What must a group of organisms produce to be considered a species?

Fertile offspring

Interspecific competition occurs between members of what?

Different species

In mutualism, which organisms benefit?

Both organisms

What does a qualitative survey record?

If species is present or absent

What characteristic defines producers?

Make their own food

What defines apex predators?

No natural predators

What do edaphic factors relate to?

Soil

What does a grazing food chain start with?

A producer

Which gas is linked to global warming?

CO2CO_2

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