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CHAPTER 30: POPULATIONS & COMMUNITIES

_____________________________ - A group of living things of the same species that live in an area.

Populations of organisms may be counted via:

Human population has increased _______________________ over the past 100 years.

Animal populations are affected by:

_______________________________________ - Any condition that keeps the size of a population from increasing

Example: lack of light, space, water & food

Are human populations affected by this? If not now, will they be some day?

_____________________________ - All the living things in an area that depend on each other.

What types of organisms exist in a Franklin Lake Community?

________________________ - Place where a plant or animal lives

___________________ - The job of an organism in its community

Examples:

Parts of a Community 

·       Producers –

·       Primary Consumers –

·       Secondary Consumers –

·       Decomposers –

Energy in a Community – The SUN is the ultimate source of energy for all living things!!!

_____________________________ - A pathway of energy & materials through a community.

Example:

Each living thing is an ______________________________ & depends on all other living things in the food chain.

________________________ - Several food chains connected in a community.

Example:

__________________________________ - A diagram that shows energy loss in a food chain.

Example:

Would you get the most efficient source of energy from eating a plant or an animal? WHY?