Ecosystems & Distribution of Organisms

Key Area 1 & 2

What is an ecosystem?

It consists of all the organisms living in a particular habitat

What is a species?

An organism that can interbreed to product fertile offsprings

What is biodiversity?

It’s the range of living things in an ecosystem

What is population?

It’s the total number of a single species in an ecosystem

What is the definition of community?

All of the organisms living in an ecosystem

What is the definition of a producer?

Is the plant that being the food chain by making their own energy

What is a consumer?

An orangish that must consume other organisms to gain energy to survive

What the definition of a herbivore?

An organism that only eats plant

What’s a carnivore?

An organism that only eats animals

What is an omnivore?

An organism that eats both plant and animals

What is the definition of a predator?

It’s an organism the hunts, kills and eats other animals for food

What is the definition of prey?

An organism that predators kills for food

What the definition of a niche?

The role an organism play in its community

When does interspecific competition occur?

It occurs amongst individuals of DIFFERENT species for a few of the resources the both require

When does intraspecific occur?

Occurs amongst individuals of the SAME species and is for ALL resources required

What competition is more intense interspecific or inraspecific?

Intraspeific

What the definition of a biotic factor?

Their living factors the affect the distribution of organism

What is the definition of an abiotic factor?

Their non-living factors affect the distribution of organisms

What is an indicator species?

They’re species the by there absent or present can indicate the level of pollution

In an ecosystem consists of abiotic factors plus?

community and its habitat