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- 1. Multiple Choice
What are some characteristics of a healthy environment?
adequate shelter and nesting sites
a variety of species
drought
clean air, water, and nutrients
- 2. Multiple Choice
A series of changes in a community.
stable
competition
ecosystem
succession
- 3. Multiple Choice
One threat that could harm a healthy ecosystem.
balance of decomposers, producers, and consumers
volcanic eruption flood , forest fire .
adequate water and food supply
- 4. Multiple Choice
Natural disasters such as flooding and fire forestfire are linked to ________________.
primarysecondaryold fieldecosystem - 5. Multiple Choice
What type of succession is shown going from figure A to figure B?primary successioneutrophicationsecondary successionintermediate - 6. Multiple ChoiceAfter a forest fire, an ecosystem would start regrowth through -primary successionsecondary successionclimax communitylimiting factors
- 7. Multiple Choicesuccession that occurs in an area with no soilecological successionprimary successionsecondary successionpioneer speciles
- 8. Multiple Choicesuccession that occurs in an area where soil is already presentecological successionprimary successionsecondary successionpioneer speciles
- 9. Multiple Choicethis type of succession occurs after a forest fireprimary successionsecondary successionboth
- 10. Multiple Choice
After a volcano destroys the land, ________________ succession takes place.
Secondary
Primary
Tertiary
Important
- 11. Multiple Choice
Primary succession takes ____________ time than secondary succession.
More
Less
Same
- 12. Multiple Choice
a new land starts life which no life before
primary successionsecondary successiontertiary successionvariable succession - 13. Multiple ChoiceWhat is the order of succession shown in this figure?A, B, C, DB, A, D, CC, D, A, BD, A, B, C
- 14. Multiple Choice
Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?
Competition
Biotic factor
Symbiosis
Population
- 15. Multiple Choice
Hawks and brown bears live together in the same habitat. There will be competition between the hawks and the brown bears only if which of the following is true?
Brown bears hibernate during the winter while hawks remain active.
Both brown bears and hawks feed on the same species of fish.
Both Shanna and Savanna feed on the same species of snakes.
- 16. Multiple Choice
a mouse eats corn. Which would most likely happen if the field mouse increase
There would be more corn to feed mouse
There would be less corn due to the mouse eating it.
- 17. Multiple ChoiceWhich two organisms in this food web are COMPETING for food with each other?Cougar and DeerRabbit and SnakeInsects and GrassShrew and Mouse
- 18. Multiple Choice
Animals from two different species feed on the same food in one area. they ............
will learn to get alongwill compete for foodwill learn to eat different foods - 19. Multiple ChoiceI am a living thing that must use other organisms as food to get energy.decomposerconsumercompetitionenergy pyramid
- 20. Multiple ChoiceI am an organism that breaks down and recycles the remains of dead organisms in an ecosystem.competitionconsumerdecomposerfood chain
- 21. Multiple ChoiceI am a living thing that can use energy from the sun to make food.decomposerconsumerproducercompetition
- 22. Multiple Choice
What does it mean to be stable?
To make a change
Steady, or unchangeable
Not moveable
- 23. Multiple Choice
threats that could harm a healthy ecosystem.
balance of decomposers, producers, and consumers
over hunting, over fishing, and over harvesting. pollution, drought
adequate water and food supply
- 24. Multiple Choice
Organisms can only survive in ecosystems that......
healthy.
meet their needs.
rain a lot.
- 25. Multiple Choice
___________ occurs when organisms in an ecosystems need the same resources
Decomposers
Changes
Competition
- 26. Multiple Choice
What might happen to the rest of the food chain if there was a decrease in the snake population?
The grasshopper population will increase.
The mouse population will decrease.
The hawk population will decrease.
The grass population will decrease.
- 27. Multiple Choicesuccession that occurs in an area with no soilecological successionprimary successionsecondary successionpioneer speciles
- Answer choicesTagsAnswer choicesTags