• Which are there more of, wolf or deer? Why?

• Soda Bottle BONUS!

The study of interactions betweenorganisms and other organismsand organisms and their environment.

A group of organisms that are able to breed with one another.

Groups of members of the samespecies that inhabit a given area

Different populations livingtogether in one area.

Predator/prey- hunter/hunted

Herbivore/carnivore- plant vs. meat eaters

Autotroph/heterotrpoh- producer/consumerautotroph MAKES ITS OWN FOODheterotroph EATS ITS FOOD

Decomposer- breaks down complex moleculesin dead organisms, recycling them for others

Parasite/Host- Parasites live at the expenseof their hosts

example- tapeworm lives in yourintestines and TAKES your nutrients

Mutualistic- BOTH species benefitexample- wrasses (fish) clean the mouths ofpredators. Wrasses get food,predators get clean teeth.

NO!

Very few things in nature only eat onething. Everything is interconnected,so it is easier to show as a food web.

*Arrows point toward what is eating, not being eaten! (arrows show ENERGY FLOW through ecosystem)

All areas of Earth in whichlife exists (land, air, water, etc.)

• How could you study a group of field mice in a 200 acre field?

• Is that group a population or a community?

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