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- 1. Multiple Choice
What does biotic mean?
nonliving
living
dead
- 2. Multiple ChoiceWhat is the original source of energy in an ecosystem?consumersheterotrophsautotrophssun
- 3. Multiple ChoiceWhat is competition?the living parts of an environmenttwo or more organisms depend on the same limited resourcea group of individuals of the same species that live in the same placea nonliving part of an environment
- 4. Multiple Choice
A bird makes a nest in a tree. The bird gets a house, but the tree is unharmed.CommensalismMutualismParasitism - 5. Multiple Choicethe process by which a new community forms where no community lived beforeresourceinvasive (non- native) speciesprimary successioncompetition
- 6. Multiple Choicea stable ecological community that has reached equilibriumecological successionclimax communitysecondary successionpioneer speciles
- 7. Multiple ChoiceWhat are examples of pioneer species in a primary succession?Bushes and ShrubsOak treesMossess and LichensA rose Bush
- 8. Multiple ChoiceThis is a example of ........organorgan systemtissuecell
- 9. Multiple ChoiceThis is a example of ........celltissueorganorgan system
- 10. Multiple ChoiceA collection of organisms that belong to different populations but all live in the same area and interact with one another.PopulationEcosystemCommunityEcosphere
- 11. Multiple ChoiceWhat are the abiotic factors in this image?water, sunlight, dirt, airbirds and plantswater, plants, and birds
- 12. Multiple Choice
What is the bottom layer of the an energy pyramid?
producer
tertiary consumer
Secondary consumer
primary consumer
- 13. Multiple Choice
What does an energy pyramid show?
Energy flow in a community
Longest lifespans
The stronger animal the higher it is on the pyramid
- 14. Multiple Choice
What would happen if their were no producers?
Every population would grow larger
Everything would die out
The animals would make their own food
- 15. Multiple ChoiceIn the energy pyramid here, which organisms have the most energy available?ProducersCarnivoresHerbivoresTop Predator
- 16. Multiple ChoiceIn the energy pyramid below, which organism has the least amount of energy available?ProducersHerbivoresCarnivoresTop Predator
- 17. Multiple ChoiceIf there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?10 Kcal1 Kcal100 Kcal1000 Kcal
- 18. Multiple ChoiceA manatee is a water-dwelling herbivore on the list of endangered species. If manatees were to become extinct, what would be the most likely result in areas where they had lived?Certain producer organisms would become more abundant in the area.Other manatees would move into the area and restore balance.Predators in the area would have more food to eat.The area would not be affected.
- 19. Multiple ChoiceScientists are concerned about overfishing of shark populations. Sharks feed on rays and rays feed on scallops. Without sharks, rays consume all the scallop beds. This situation demonstrates that:humans can improve an ecosystem by removing predators.humans can upset an ecosystem by removing species.reducing the shark population increases the quantity of scallops that can be taken.sharks are not important for the stability of the ecosystem.
- 20. Multiple ChoiceIf humans cleared a forest to build homes, we would expect _____________.fewer tree-dwelling animalsincreased insect populationsmore development of soilmore frequent thunderstorms
- 21. Multiple ChoiceWhat would happen if the mouse population went extinct?The Kestrel (Hawk) population would increaseThe Blackberry plants would increaseThe Rabbit population would decreaseThe grass would increase
- 22. Multiple ChoiceWhat do scientist call organisms that are not native to an ecosystem and cause harm to native organisms?native plantsinvadersinvasive speciesnatural species
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