2 3 4 5 6 70
10
20
30
40
50
60
70
80
90
100
YOUR SCORE….
13/12=110 9/12=75
12/12=100 8/12=67
11/12= 92 7/12=58
10/12= 83
Today we are going to review the objectives people had the hardest time with.
3.e Food Webs 3. a Ecosystems
71.9% 70.2%
Producers are plants
Primary consumers eat plants
Secondary consumers eat primary consumers
Let’s practice…
1) Flower2) Bird that eats worms3) Giraffee4) Shark that eats fish (fish eat bugs)
Let’s practice…
Two examples of producers are:a) Flower and birdb) Cow and grassc) Squirrel and chipmunkd) Tree and orange
What kind of consumer are humans?
Looking at a food web….
Ecosystems have LOTS of producers
Producers are the most organism in an ecosystem
Decomposers break down dead organisms
They help put nutrients back in the soil
The sun is the source of energy in every ecosystem.
Let’s practice…
1) What kind of organisms breaks down dead things?
2) What is the source of energy in an ecosystem?
3) What kind of organisms is most common in an ecosystem?
Competition is when organisms need the same resource
Parasitism is when organisms attach to another organism and steal its resources
In mutualism, both animals are helped
In commensalism, one animal is helped
Let's practice...
1) A tick2) A monkey & a gorilla3) A small fish hiding in a big fish's shadow4) A flee5) Plover birds and alligators