Ecology Quiz on Niche and Food Chains

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Questions and Answers

Match the following levels of a food chain with their respective type of organisms:

Producers = Organisms that photosynthesize Primary Consumers = Herbivores Secondary Consumers = Carnivores Scavengers = Organisms that eat dead matter

Match the following components of Earth with their definitions:

Atmosphere = Layer of gases around Earth Lithosphere = Rocky outer shell of Earth Hydrosphere = All of Earth's water in various forms Biosphere = Zone around Earth where life can exist

Match the types of consumers with their definitions:

Herbivore = Eats plants Carnivore = Eats animals Omnivore = Eats both plants and animals Scavenger = Eats dead organisms

Match the parts of ecological pyramids with their descriptions:

Energy Pyramid = Shows energy flow through trophic levels Biomass Pyramid = Shows the biomass at each trophic level Numbers Pyramid = Displays the number of organisms at each level Trophic Pyramid = Describes energy, biomass, and numbers in one model Signup and view all the answers

Match the ecological terms with their explanations:

Ecological niche = Function a species serves in its ecosystem Food chain = Shows organisms in a feeding sequence Trophic levels = Different levels in an ecological pyramid Gaia hypothesis = Earth functions as a unified system Signup and view all the answers

Match the biomes with their characteristics:

Desert = Low rainfall and extreme temperatures Forest = Dense tree coverage and diverse species Grassland = Flat areas with grasses and few trees Tundra = Cold regions with low vegetation Signup and view all the answers

Match the following organisms with their roles in a food chain:

Squirrel = Primary consumer that eats seeds Weasel = Secondary consumer that eats squirrels Goshawk = Tertiary consumer that eats weasels Pine cone seeds = Producers in the food chain Signup and view all the answers

Match the following ecosystems with their characteristics:

Aquatic Ecosystems = Can tolerate only minor changes in pH Forests = Weakens trees making them vulnerable Soils = Can have buffering capacity Agroecosystems = Lower biodiversity and more uniform abiotic features Signup and view all the answers

Match the descriptions of ecosystems with their types:

Terrestrial ecosystems = Ecosystems on land Aquatic ecosystems = Ecosystems in water Freshwater ecosystems = Includes rivers and lakes Marine ecosystems = Includes oceans and seas Signup and view all the answers

Match the following land uses with their descriptions:

Farms = Support modern agricultural practices Urban centers = Areas with high population density Roads = Infrastructure to connect different locations Natural ecosystems = Replaced by human activities for development Signup and view all the answers

Match the following impacts of acid precipitation with their effects:

Loss of wood = Damaged forests Reduction in fish stocks = Impact on recreational fishing Damages steel structures = Economic harm Weakening of trees = Increased vulnerability to diseases Signup and view all the answers

Match the following features of the biomass pyramid:

Wider base = More energy stored in lower levels Higher levels = Less energy available Weight of plants = Higher than that of top carnivores Energy loss = Decreases as you go up the food chain Signup and view all the answers

Match the following agricultural concepts with their definitions:

Monocultures = Growing only one species of organism Biodiversity = Variety of different species in an ecosystem Abiotic features = Non-living environmental components Intensively used = Requires human maintenance Signup and view all the answers

Match the following characteristics with the types of precipitation effects:

Acidic groundwater = Dissolves metals in soil pH changes = Most fragile organisms affected first Buffering capacity = Resistance to pH changes Acid soil = Weakens plant growth in forests Signup and view all the answers

Match the following types of ecosystems with their explanation:

Natural ecosystems = Self-sustaining without human interference Engineered ecosystems = Created to support human needs Aquatic ecosystems = Life forms dependent on water Agroecosystems = Controlled environments for crop production Signup and view all the answers

Match the following terms with their contexts:

Acid precipitation = Environmental and economic impacts Economic impact = Loss of industries and resources Environmental impact = Effects on ecosystems and biodiversity Modern agriculture = Relies on imported food ingredients Signup and view all the answers

Study Notes

Ecological Niche

A species' role in its ecosystem, including what it eats, what eats it, and how it behaves
No two species can occupy the same niche

Consumers and Energy

Consumers obtain energy from different sources
Consumers are further categorized by the types of food they eat

Food Chains

A sequence showing what organisms eat what
Example: Squirrel eats pine cones, weasel eats squirrel, goshawk eats weasel
Energy in food is transferred through the levels of the chain

Trophic Levels

Producers: First trophic level (photosynthesis)
Herbivores: Second trophic level
Carnivores: Third trophic level and above

Ecological Pyramids

Diagrams showing relationships between trophic levels in ecosystems
The base of an energy pyramid is wider than the top because there's more energy in the lower levels
Energy is lost as you move up the food chain

Modern Agriculture & Agroecosystems

Many farm products are not native to the area where they are grown, but are imported
Agroecosystems have more uniform conditions compared to natural ecosystems
Agroecosystems may have lower biodiversity and require human intervention for maintenance
Monoculture farming practices (growing one type of organism) can make the ecosystem more vulnerable to pests.

Acid Precipitation Impact

Aquatic life is sensitive to pH changes
Acidic water can dissolve minerals needed by plants
Acidic soil harms plants and makes them prone to diseases and harsh weather
Acid precipitation damages forests and affects the economy (loss of wood, reduced fish stocks)

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Description

Test your knowledge on ecological niches, food chains, and trophic levels. This quiz covers the roles of consumers, energy flow in ecosystems, and the significance of ecological pyramids. Challenge yourself to understand how modern agriculture impacts these concepts.