Topic 7- communities

Question 1

Define a community.

Answer 1

Multiple populations (of different species) living and interacting in the same area

Question 2

What is an ecosystem?

Answer 2

The interaction between a community (the living, biotic part) and the non-living (abiotic) parts of the environment

Question 3

An ecosystem is a 1.______________ of interacting organisms and the environment they live in, and interact with

Answer 3

1. relatively self-contained community

Question 4

What is there a flow of in an ecosystem and what is recycled in it?

Answer 4

-flow of energy
-nutrients

Question 5

What do ecosystems vary in?

Answer 5

-size and scale
-complexity

Question 6

Why are ecosystems never completely self-contained?

Answer 6

-organisms from one ecosystem are often linked to organisms from another