Ecosystems and Human Activity

What is a population?

• All organisms in an area living together

• All organisms of the same species in one habitat

• All organisms of the same species across the whole world

• The biotic and abiotic factors in a habitat

What is the name for a single organism's "particular role in terms of its interactions with other species and its effect on the environment"

Which of these are abiotic factors?

• Soil

• Beetle

• Trees and bushes

• The Sun

True or False: A community is all organisms of any species and their interactions in one environment?

• True

• False

Which is true about extinction? Choose all that apply

• Extinction is not real

• Extinction is caused only by humans

• Extinction is natural

• Extinction is accelerated by humans

An extinction where many different species go extinct is called a ____ extinction.