Great Lakes
Between 1950 and 1960, the Trout population in the Great Lakes _______.
Declined or Decreased
When an organism attaches itself to another without killing it, it is a specific type of predator/prey relationship called___________.
Parasite/Host
Food Chain:
Microscopic Plants- Freshwater Clam- Chub-Great Blue Heron
Are the Microscopic Plants and Freshwater clam directly or indirectly related?
Direct Interaction
What kind of swimmer is a sea lamprey?
S-Swimmer
A scientist who studies living things
Biologist
Also during this time (between 1950 and 1960), the Sea Lamprey population in the Great Lakes ________.
Grew rapidly, increased
In this food chain:
Grass- Mice - Racoon
Which is the producer?
Grass
Food Chain:
Microscopic Plants- Freshwater Clam- Chub-Great Blue Heron
Are the Microscopic Plants and Chub directly or indirectly related?
Indirectly Related
Which had more eggs? The sea lamprey or the yellow perch?
Sea Lamprey
How are invasive sea lamprey different that native lamprey in the Great Lakes?
-Different color
-Larger size
-Have a more harmful impact on the ecosystem there
The Sea Lamprey is a(n) _________ in the Great Lakes.
Invasive Species
In this food chain:
Grass- Mice - Racoon
Which is the prey?
Mice
Food Chain:
Algae- Aquatic Insects- Yellow Perch- Lake Trout
Are the Algae and Lake Trout directly or indirectly related?
Indirectly related
Which had more teeth? The sea lamprey or yellow perch?
Sea Lamprey
What is iodine an indicator for?
Starch
The Sea Lamprey is native to _________
In this food chain:
Grass- Mice - Racoon
Which is the predator?
Racoon
Food Chain:
Algae- Aquatic Insects- Yellow Perch- Lake Trout
Are the Yellow Perch and Lake Trout directly or indirectly related?
Directly related
Which has no stomach- the sea lamprey or yellow perch and WHY?
Sea lamprey- it doesn't need a stomach to digest blood.
What color does iodine turn if it is positive for starch?
Black
A natural predator of the Sea Lamprey in the Great Lakes is __________.
None- there are none
In this food chain:
Microscopic Plants- Freshwater Clam- Chub-Great Blue Heron
What is the producer?
Microscopic Plants
Food Chain:
Algae- Aquatic Insects- Yellow Perch- Lake Trout
If the Sea Lamprey enter the ecoystem as an invasive species and the lake trout population decreases, what impact would that have on the yellow perch? Why?
Their population would increase. They have fewer predators since there are fewer lake trout.
Which has a mouth with a jaw? Sea lamprey or yellow perch?
Yellow Perch
What is the main job of a carbohydrate?
Provides Energy