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Biology
7th
grade
Ecological Succession and human impact of the environment
23 questions
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- 1. Multiple ChoiceAfter a forest fire, an ecosystem would start regrowth through -primary successionsecondary successionclimax communitylimiting factors
- 2. Multiple ChoiceSuccession that occurs in an area with NO SOILecological successionprimary successionsecondary successionpioneer speciles
- 3. Multiple ChoiceThe picture shows what type of succession?primarysecondarytertiaryquadanary
- 4. Multiple ChoiceStarts with BARE ROCK followed by lichenprimary successionsecondary successionboth types of succession
- 5. Multiple ChoiceThe picture shows what type of succession?primarysecondarytertiaryquadanary
- 6. Multiple ChoiceHow do lichens contribute to primary succession?Lichens decompose organic matter from animals and plantsLichens begin to break down rock to form soilLichens are nitrogen fixing bacteriaLichens convert carbohydrates into fossil fuels.
- 7. Multiple ChoiceWhat is the first species you will see after a primary succession? (in picture)lichensgrassessmall plants
- 8. Multiple ChoiceReaches a climax community quicker because soil is already presentprimary successionsecondary successionboth types of succession
- 9. Multiple ChoiceThe process by which a new community forms where no community lived beforeresourceinvasive (non- native) speciesprimary successioncompetition
- 10. Multiple ChoiceAfter a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?Lichens → Shrubs → Grasses → TreesLichens → tree → shrubs→GrassesGrasses → Lichens → Shrubs → TreesLichens → Grasses → Shrubs → Trees
- 11. Multiple ChoiceWhat type of succession is shown going from figure A to figure B?primary successionecological successionsecondary successionintermediate
- 12. Multiple ChoiceWhat does the final picture (#8) show?pioneer speciesa climax communityonly biotic factorsonly abiotic factors
- 13. Multiple Choice
A SMALL TOWN IN THE PINEY WOODS OF EAST TEXAS HAS A SOCCER FIELD COMPOSED OF NATIVE GRASSES.THE SOCCER FIELD IS MOWED ONCE A WEEK.
WHAT EFFECT DOES THE CONTINUAL MOWING HAVE ON THE ECOLOGY OF THE FIELD.
mowing increases the likelihood of non-native species displacing native species.
mowing increases the number of species found in the field.
mowing causes different types of form across the field.
mowing maintains a low species diversity by inhibiting further succession.
- 14. Multiple Choice
The rocky material left behind by a retreating glacier forms what is called a moraine. when primary succession occurs on a moraine, which life forms will help create the soil by breaking down bare rock?
insects
lichens
grasses
deciduous trees
- 15. Multiple Choice
In a certain low-elevation environment in New York State, Lichens and mosses are the predominant forms of life. This community most probably represents:
Terrestrial climax community
The early stages of succession
Reforestation practices
An aquatic biome
- 16. Multiple Choice
The diagram above represents succession in a temperate deciduous biome. Which factor would most likely have the greatest influence on the type of plants in each stage of succession?
Fertility of soil
Species of earthworms in the area
Percentage of oxygen in the atmosphere
Number of predators in the area
- 17. Multiple Choice
An environmental organization wants to investigate the effects of a mine on the local wildlife. Which one of the following tests will be most useful in its investigation?
Measure the heights of the larges t trees in the area.
Calculate the amount of pollution produced by the factory in one day.
Determine the population of local animals before the mine was created.
Compare the change in population of local animals before and after the mine was created.
- 18. Multiple Choice
As time passes, a community will eventually reach a stage in which all organisms are in balance with each other and with the abiotic factors in their environment. This final stage of succession is called a
Climax Community
Habitat complexity
Ecological balance
Successive renewal
- 19. Multiple Choice
What kind of organism would most likely be growing on an island created by a volcanic eruption just two years after?
climbing vines
monkeys
lichens
hardwood trees
- 20. Multiple Choice
Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem.
Non-native species would replace native species.
The number of primary consumers would increase
The natural succession of vegetation would change.
All producers would be eliminated from the community.
- 21. Multiple Choice
desert, tundra, tiaga, grassland, forest these are examples of what?
ecosystems
biomes
communities
populations
- 22. Multiple Choice
which of the following is most likely to cause the greatest disruption to an ecosystem?
emptying an aquarium containing non-native species into a local waterway
cutting down a small cedar tree to make holiday decorations.
cleaning the windshield of a car with alcohol based cleaner
mowing the lawn in a city park.
- 23. Multiple Choice
an environmental change that removed which of these organisms from the ecosystem would cause the most instability in the ecosystem? (hint which organism is most relied on as a food source).
AUKELTS
FOXES
SALMON
ZOOPLANKTON
- Answer choicesTagsAnswer choicesTags