1. Ecosystems
5-2.2
Kellen Rich

2. What we need to know:
An ecosystem contains all of the living organisms and their non-living surrounding environment that contribute to the functioning of the ecosystem.
The LIVING parts of the ecosystems are called biotic factors, including: populations and communities.
The nonliving parts of ecosystems are called abiotic factors, including: temperature, water, soil, air, and sunlight.

3. Let’s name some!
Biotic
Abiotic

4. Living organisms can be grouped 2 ways:

5. Population
All members of one kind of organism that live in a particular area.
Some examples of a population may be all of the white-tailed deer in a forest, all rainbow trout in a stream, or all of the bald cypress trees in the swamp.
Micro-ogranisms are living things that can be single-celled or multi-celled organism that is too small to be seen without a magnifying glass.

6. Community A group of different populations of organisms.
Some examples of communities are:
All of the squirrels, acorn trees, and grass in a park.
All of the students, teachers, and plants in a classroom.
All of the cacti, snakes, and scorpions in the dessert.