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- 1. Multiple Choice
When is World Environment Day is celebrated?
5 February
5 August
5 June
5 may
- 2. Multiple Choice
What does a food chain always start with?
The herbivore
The carnivore
The producer
The consumer
- 3. Multiple Choice
Which of the following is a primary consumer in a grassland ecosystem?
- 4. Multiple ChoiceWhat is the study of the interactions among organisms and between organisms and their environments called?BiologyEcologyAstronomyBiosphere
- 5. Multiple ChoiceThe direction of the flow of energy in a food web is represented by ___.Light bulbsDotted LinesArrowsBubbles
- 6. Multiple ChoiceEnergy increases as you move up the food pyramid (from bottom to top).TrueFalse
- 7. Multiple Choice
What percentage of energy is passed on to next tropic level?
10%
50%
90%
100%
- 8. Multiple Choice
What is this called?
Food Web
Food Chain
Abiotic Factors
Biotic factors
- 9. Multiple Choice
Which organism recieves the least amount of energy from the producer?
Owl
Grasshopper
Lilypad
Mouse
- 10. Multiple ChoiceAll energy on Earth ultimately comes from what source?WaterSunConsumersOxygen
- 11. Multiple ChoiceWhy is there a limited amount of energy that can be passed on to the next feeding level?There is never enough sunlight available.Some ecosystems have limited resources.Organisms use some of the energy they get from eating.All the energy is available to be passed on.
- 12. Multiple ChoiceThe largest group of organisms found in a food web would be:Primary ConsumersProducersDecomposersTertiary Consumers
- 13. Multiple Choice
The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...
Biotoxicity
Biomagnification
Eutrophication
Predation
- 14. Multiple Choice
Consider the following food chain:
Algae > Mayfly > Minnow > Trout
In a polluted ecosystem, which organism is likely to have the HIGHEST level of toxic chemicals in its body?
Algae
Mayfly
Minnow
Trout
- 15. Multiple Choice
What does the Ozone in the atmosphere do?
causes the greenhouse effect
causes acid rain
protects the Earth from harmful infrared (IR) rays
protects the Earth from harmful ultraviolet (UV) rays
- 16. Multiple Choice
What damage can UV rays cause?
can cause sunburn.
can cause some types of skin cancer.
cataracts.
all of the above
- 17. Multiple Choice
What is causing damage to the Ozone layer?
Methane
Carbon dioxide
CFCs
All of the above
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