WorksheetsBiodiversity - 7th Grade Science
Total questions: 25
Worksheet time: 14mins
What is biodiversity?
Maintaining something at a stable level
All of the living and non-living things in an environment
All of the members of the same species in an area
All of the different types of living things
What is an ecosystem?
Maintaining something at a stable level
All of the living and non-living things in an environment
All of the members of the same species in an area
All of the different types of living things
What is sustainability?
Maintaining something at a stable level
All of the living and non-living things in an environment
All of the members of the same species in an area
All of the different types of living things
What is a population?
Maintaining something at a stable level
All of the living and non-living things in an environment
All of the members of the same species in an area
All of the different types of living things
Biodiversity makes an ecosystem ______ stable
More
Less
Equally
Not
Very dry, very cold, soil remains permanently frozen, low biodiversity
Tundra
Desert
Grassland
Moderate rainfall, covered in mostly grass, medium biodiversity
Tundra
Desert
Grassland
Very dry, can be very hot or very cold, low biodiversity
Tundra
Desert
Grassland
Moderate rainfall, forested with cone-bearing trees that have needles instead of leaves, medium biodiversity
Tropical Rain Forest
Temperate Forest
Taiga
Rains every day, covered in lush plant life, highest biodiversity of all land biomes
Tropical Rain Forest
Temperate Forest
Taiga
Moderate rainfall, trees have broad & flat leaves that change color and drop in the winter, high biodiversity
Tropical Rain Forest
Temperate Forest
Taiga
How does biodiversity impact ecosystem stability?
Variations in the ecosystem provides more habitats, which makes the ecosystem more resilient to change
Variations within a species means that certain individuals will have superior genes that allow the species to survive
Variations of species in an ecosystem increases chance of survival for all species in the ecosystem
All of the above are true
What is always the result of ecological succession?
Pioneer Species
Climax Community
Catastrophic Event
What are lichens, the first plants to grow on bare rock?
Pioneer Species
Climax Community
Catastrophic Event
What is an intense & violent occurrence that can destroy an ecosystem?
Pioneer Species
Climax Community
Catastrophic Event
All of the following are catastrophic events, except...
Tornado
Hurricane
Wildfire
Thunderstorm
Earthquake
Which type of ecological succession occurs in places that have never had an ecosystem before?
Primary succession
Secondary succession
Which type of ecological succession occurs in places that had an ecosystem that was destroyed by a catastrophic event?
Primary succession
Secondary succession
Which type of ecological succession takes longer to occur?
Primary succession
Secondary succession
What is the correct order of the stages of ecological succession?
Shrubs, Lichens, Grasses/Flowers, Trees
Lichens, Grasses/Flowers, Shrubs, Trees
Trees, Shrubs, Grasses/Flowers, Lichens
Lichens, Grasses/Flowers, Trees, Shrubs
How can a climax community be described?
No organisms live here
A few organisms live here
Many different organisms live here
What is an adaptation that would help an organism to survive in the tundra?
Thick fur to conserve heat
Scales to prevent water loss
Sharp claws to aid in climbing
Golden-tan fur to blend in
What is an adaptation that would help an organism to survive in a grassland?
Thick fur to conserve heat
Scales to prevent water loss
Sharp claws to aid in climbing
Golden-tan fur to blend in
What is an adaptation that would help an organism to survive in a desert?
Thick fur to conserve heat
Scales to prevent water loss
Sharp claws to aid in climbing
Golden-tan fur to blend in
What is an adaptation that would help an organism to survive in a tropical rain forest?
Thick fur to conserve heat
Scales to prevent water loss
Sharp claws to aid in climbing
Golden-tan fur to blend in
