Chapter 18

Review Sheet

Study of the interactions of living organisms and their environment ecology

Different organisms living in a particular place community

Organisms, soil, weather, water, energy make up an ecosystem

Organisms linked together that depend on each other interdependence

What an organisms eats, where it lives etc… is it’s: niche

Where an animal lives

habitat

How can organisms deal with unfavorable conditions? Dormancy Migration Regulate body temp.

Grasses, trees, plants photosynthetic algae are producers

“Special” name for ALL of the cycles

biogeochemical

Parts of the water cycle

Evaporation Condensation Precipitation Transpiration

How can humans affect the carbon cycle? Fossil fuels Clearing forests Killing plants

An organism that CANNOT regulate their internal conditions conformer

An animal that CAN regulate their internal conditions regulator

Organic material that is made in an ecosystem biomass

Meat eaters

carnivore

Plant eater

herbivore

Bacteria that break down dead tissue

decomposer

Interrelated food chains

Food web

One way path of feeding relationships

Food chain

As you move up the trophic levels _________ is lost Energy (lost as heat)

Two main parts of the carbon cycle

Photosynthesis Respiration

Water in the soil is

Groundwater

The conversion of nitrogen gas to nitrate by the action of bacteria is Nitrogen fixation

Short Answer

Give an example of: (4 Points) Can wildcard parts

Producer:

Consumer:

Herbivore:

Carnivore:

What is the difference between a niche and a habitat? (2 points)