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Science
7th
grade
Abiotic/Biotic, Environment Impacts, and Symbiotic Relationships
20 questions
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- 1. Multiple Choice
A living or once-living part of an ecosystem is a(n) _________ factor.
abiotic
biotic
- 2. Multiple Choice
A nonliving part of an ecosystem is a(n) ___________ factor.
abiotic
biotic
- 3. Multiple Choice
Temperature, light, air, water, and soil are all _____ parts of the environment
abiotic
biotic
- 4. Multiple Choice
Which of the following is not an abiotic factor?
sun
temperature
soil
grass
- 5. Multiple Choice
Which of the following is not a biotic factor?
mushroom
air
elephant
coyote
- 6. Multiple ChoiceWhich of the following lists has ONLY biotic factors?
snail, algae, sunlight
temperature, snail, guppy (fish)
snail, guppy (fish), algae
temperature, pH, nitrite concentration
- 7. Multiple ChoiceWhich of the fallowing has only abiotic factors?Sunlight, algae, and temperatureGuppy, crab, oxygenSunlight, soil, and weatherAlgae, temperature, and dog
- 8. Multiple ChoiceWhere is pollution found on the earth?
only in the aironly on the landonly in the wateron land, in the air, and in the water - 9. Multiple ChoiceThe process where humans permanently destroy forests so they can use the land in other ways.ErosionDesertificationUrbanizationDeforestation
- 10. Multiple ChoiceThe process by which land becomes increasingly dry to a point of being useless.desertificationmarginal landdroughtpastoral nomads
- 11. Multiple ChoiceThe growth of cities to support human population growth causes _______?DeforestationUrbanizationErosionDesertification
- 12. Multiple ChoiceA relationship between two organisms in which one organism benefits and the other is unharmed...MutualismCompetitionParasitsmCommensalism
- 13. Multiple ChoiceA relationship between two organisms in which both organisms benefit.MutualismCompetitionParasitsmCommensalism
- 14. Multiple ChoiceWhat type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.commensalismmutualismparasitismpredation
- 15. Multiple ChoiceWhat type of symbiosis? Skunks often live in burrows that have been dug and abandoned by woodchucks.commensalismmutualismparasitismpredation
- 16. Multiple Choice
Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.
Predation
Parasitism
Commensalism
Mutualism
- 17. Multiple ChoiceSilverfish live and hunt with army ants. They share the prey. They neither help nor harm the ants.MutualismParasitismCommensalism
- 18. Multiple ChoiceA tick and a dog have this type of relationship.mutualismcommensalismneutralismparasitism
- 19. Multiple ChoiceOstriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because their visual abilities are different, they can identify threats that the other animal would not see as readily.parasitismcommensalismmutualism
- 20. Multiple ChoiceOxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.parasitismcommensalismmutualism
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