#1
Which of the following is a primary driver of biodiversity loss?
Habitat destruction
ExplanationDestruction of habitats leads to loss of biodiversity.
#2
What is the term for the variety of different species in an ecosystem?
Species diversity
ExplanationSpecies diversity refers to the number and variety of different species in an ecosystem.
#3
What is the term for the variety of ecosystems present in a given area?
Ecosystem diversity
ExplanationEcosystem diversity refers to the variety of ecosystems present in a given area.
#4
Which conservation strategy involves protecting an entire ecosystem to preserve its biodiversity?
Habitat conservation
ExplanationHabitat conservation aims to protect entire ecosystems to preserve biodiversity.
#5
Which of the following is an example of a mutualistic relationship in an ecosystem?
Pollination by bees
ExplanationBees pollinating plants is an example of a mutualistic relationship in an ecosystem.
#6
Which trophic level in an ecosystem includes organisms that primarily consume plants?
Primary consumers
ExplanationPrimary consumers are organisms that primarily consume plants in the food chain.
#7
What is a keystone species in an ecosystem?
A species that regulates the ecosystem
ExplanationKeystone species play a crucial role in regulating the balance of an ecosystem.
#8
Which biome is characterized by permafrost and a layer of mosses and lichens as primary vegetation?
Tundra
ExplanationTundra biome is characterized by permafrost and mosses as primary vegetation.
#9
What is the term for the gradual process by which ecosystems change and develop over time?
Ecological succession
ExplanationEcological succession is the gradual process of change and development in ecosystems over time.
#10
Which environmental factor has a major impact on coral reef ecosystems?
Temperature
ExplanationTemperature has a significant impact on coral reef ecosystems.
#11
What is the primary factor influencing the distribution of biomes on Earth?
Temperature
ExplanationTemperature is a key factor determining the distribution of biomes on Earth.
#12
In an aquatic ecosystem, what is the zone where light penetration is sufficient for photosynthesis but does not reach the bottom?
Photic zone
ExplanationPhotic zone is where light penetration is sufficient for photosynthesis but doesn't reach the bottom in aquatic ecosystems.
#13
Which of the following is a method of ex-situ conservation?
Seed banks
ExplanationSeed banks are a method of conserving plant species outside their natural habitat.
#14
Which process involves the conversion of atmospheric nitrogen into a form that plants can use?
Nitrogen fixation
ExplanationNitrogen fixation is the process of converting atmospheric nitrogen into a form usable by plants.
#15
In which layer of the atmosphere does weather occur?
Troposphere
ExplanationWeather occurs in the troposphere, the lowest layer of the Earth's atmosphere.