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Worksheetsquiz 2 1st grade
Total questions: 15
Worksheet time: 8mins
What are the main types of ecosystems found on Earth?
Urban ecosystems
Desert ecosystems
Mountain ecosystems
Terrestrial ecosystems, aquatic ecosystems.
Define abiotic factors and give three examples.
Soil pH, wind speed, and humidity
Plants, animals, and bacteria
Three examples of abiotic factors are temperature, water, and sunlight.
Cloud cover, soil nutrients, and air pressure
What role do biotic factors play in an ecosystem?
Biotic factors are solely responsible for abiotic changes.
Biotic factors only affect the physical environment of an ecosystem.
Biotic factors have no impact on ecosystem dynamics.
Biotic factors play a crucial role in shaping interactions and relationships within an ecosystem.
Name two types of flora commonly found in coastal ecosystems.
Mangroves, Salt marsh grasses
Desert shrubs
Pine trees
Cacti
How do abiotic factors influence the distribution of species?
Abiotic factors have no effect on species distribution.
Abiotic factors only influence the size of species populations.
Abiotic factors influence species distribution by determining the suitability of environments for survival and reproduction.
Species distribution is solely determined by biotic factors.
What is the significance of biodiversity in an ecosystem?
Biodiversity is irrelevant to ecosystem productivity.
Biodiversity is crucial for ecosystem health, stability, and resilience.
Biodiversity only benefits human activities.
Biodiversity decreases competition among species.
List three examples of fauna that thrive in freshwater ecosystems.
Polar bear
Desert lizard
Common frog, freshwater turtle, rainbow trout
Sea urchin
How did Hurricane Katrina affect the flora in the affected areas?
Hurricane Katrina improved the growth of native plants by providing more water.
Flora remained unaffected as the storm passed quickly without damage.
Hurricane Katrina severely damaged flora by uprooting trees, flooding habitats, and introducing saltwater, resulting in loss of plant species and altered ecosystems.
The hurricane led to an increase in biodiversity in the affected areas.
What are some common adaptations of fauna in hurricane-prone regions?
Developing bright colors for attraction
Migrating to colder climates
Building nests in open areas
Common adaptations of fauna in hurricane-prone regions include seeking shelter, strong limbs for stability, and timing reproductive cycles.
Describe the impact of hurricanes on marine ecosystems.
Hurricanes only impact coastal land and not marine ecosystems.
Hurricanes improve water quality and promote biodiversity.
Hurricanes disrupt marine ecosystems by damaging habitats, altering water quality, and affecting species distribution.
Hurricanes have no effect on marine life or habitats.
What abiotic factors are most affected by hurricanes?
Ocean currents, wave height, and atmospheric pressure
Soil composition, light intensity, and nutrient levels
Air pressure, humidity, and wind speed
Temperature, salinity, and water levels
How can the recovery of flora after a hurricane be measured?
By measuring soil pH levels
By assessing species diversity, biomass, and regrowth rate.
By analyzing weather patterns before the hurricane
By counting the number of fallen trees
What are some invasive species that may thrive after a disturbance like Hurricane Katrina?
Red maple
Bald eagle
Burmese python, nutria, cogongrass
Bluegill fish
Explain the relationship between abiotic and biotic factors in an ecosystem.
Abiotic factors are only harmful to biotic factors.
Biotic factors can exist without any abiotic factors.
Abiotic factors provide the necessary conditions and resources for biotic factors to exist and interact within an ecosystem.
Abiotic factors are living organisms in an ecosystem.
What role do keystone species play in maintaining ecosystem balance?
Keystone species only affect the climate of an ecosystem.
Keystone species are the largest animals in an ecosystem.
Keystone species help maintain ecosystem balance by regulating species populations and promoting biodiversity.
Keystone species have no impact on biodiversity.
