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- 1. Multiple Choice
Which statements describe the feeding interaction between bears and salmon? (Check ALL that apply)
The bear is the predator.
The salmon is the predator.
The bear is the prey.
The salmon is the prey.
- 2. Multiple Choice
If a dam built in the river causes salmon populations to decrease, the bear population will probably _____________.
decrease.
increase.
remain stable.
- 3. Multiple Choice
If large groups of humans start fishing for salmon, the bear population may ___________________.
decrease.
increase.
remain stable.
- 4. Multiple Choice
What does the direction of the arrows in a food web represent?
Direction of Energy Flow
Who eats who
Opposite direction of Energy Flow
- 5. Multiple Choice
In an energy pyramid, which level has the most energy available?
Producers
Primary consumers
Secondary consumers
Tertiary consumers
- 6. Multiple Choice
All living and nonliving parts of an environment found in a specific location is called a(n) ____________________.
Habitat
Ecosystem
Population
Community
- 7. Multiple Choice
Who are the primary consumers in this food web? (Check ALL that apply)
tadpole
mink
duck
brown trout
- 8. Multiple ChoiceIf the grasshopper were to be removed completely from the food web, what organism would be most effected?The squirrelThe shrewThe deerThe rabbit
- 9. Multiple Choice
What is the organism called that gets its energy by breaking down dead things and returning the nutrients to the soil?
niche
community
population
decomposer
- 10. Multiple Choice
Name the producers in this food web.
grasshopper and rabbit
green fly and butterfly
berries and plantains
fox and buzzard
- 11. Multiple Choice
Which of the following organisms are herbivores (check all that apply).
butterfly
frog
berries
rabbit
- 12. Multiple Choice
Which of the following organisms are carnivores?
snake
titmouse
buzzard
rabbit
- 13. Multiple Choice
All the members of the same species that live in the same place at the same time is called a ______________.
resistance
natural selection
population
ecosystem
- 14. Multiple Choice
The source of energy that supports all food webs on Earth is the _______________________________.
sun.
producers.
Earth's core.
primary consumers.
- 15. Multiple Choice
Bio-accumulation of pesticides happens when ___________
pesticide levels in organisms increase as you move up the energy pyramid.
pesticide levels in organisms decrease as you move up the energy pyramid.
you collect things such as plants or insects.
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