28 Questions
What is the primary factor that determines the nature of an ecosystem?
Climatic conditions such as sunlight, temperature, and rainfall
Which cycle is not a part of the energy flow in the ecosystem?
The Nitrogen cycle
What is the primary role of decomposers in an ecosystem?
To break down dead organic matter into simpler substances
Which type of ecosystem is characterized by a specific and recognizable landscape form?
Forest ecosystems
What is the main focus of ecological pyramids?
Energy flow between different trophic levels
Which factor plays a crucial role in defining the structure and functions of an ecosystem?
Climatic conditions such as sunlight and temperature
What are the two major habitat conditions for the Earth’s living organisms?
Terrestrial and aquatic ecosystems
Which of the following is not a biogeographical realm mentioned in the text?
Neotic realm
What is the main characteristic that differentiates ecosystems?
Interaction with non-living environment and each other
Which region forms a major part of the Oriental realm according to the text?
Eurasia
What type of ecosystems are highly fragile according to the text?
Mountain ecosystems
Which level forms biogeographical regions according to the text?
National or state level
What forms the biosphere at a global level according to the text?
The thin skin of the earth on the land, the sea, and the air
Which type of ecosystem is quickly destroyed by human activities according to the text?
Island ecosystems
What is genetic diversity?
The variety of genes within a species
What does in-situ conservation of biodiversity involve?
Conserving species within their natural habitats
Which value of biodiversity refers to the direct use of biological resources for food, medicine, and other products?
Consumptive value
What is the primary characteristic of a mega diversity nation?
High number of endemic species
Which factor poses a threat to biodiversity by leading to the loss of natural habitats?
Habitat loss
What is the main focus of ex-situ conservation of biodiversity?
Conserving species in zoos and botanical gardens
What is genetic diversity?
The differences in genes among the individuals of a species
Why is genetic variability essential for a healthy breeding population of a species?
To ensure the survival of the gene pool
What is the primary role of modern biotechnology in relation to genetic diversity?
Manipulating genes to prevent extinction of species
How can the reduction in the number of breeding individuals lead to potential extinction of a species?
It reduces genetic variability and causes in-breeding
What does biodiversity include at different scales in space?
Variety and richness of all plant and animal species
What is the main consequence of using wild relatives of crop plants to create new varieties of more productive crops?
Reduction in genetic diversity
How has science’s understanding of biological diversity contributed to 'development'?
It has improved health care and crop production
What is the negative effect of modern consumerist society on biological resources?
Overexploitation and decline in biological resources
Test your knowledge of ecosystems, including concepts, structure, functions, energy flow, ecological succession, and food chains. Explore the interconnected cycles such as the water, carbon, oxygen, and nitrogen cycles.
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