Biodiversity and Ecosystem Concepts

The video tutorial discusses the concept of diversity, focusing on biodiversity, species diversity, and genetic diversity. It explains the importance of these diversities in maintaining ecosystem stability and adaptability. The tutorial also highlights the practical reasons for preserving biodiversity, such as its role in agriculture, medicine, and ecosystem services like water filtration and flood control.

What is the primary focus of ecosystem diversity?

• The variety of genes within a species

• The number of species in an area

• The different types of ecosystems in a region

• The abundance of a single species

What is one of the benefits of maintaining diverse ecosystems?

• They sustain a variety of species

• They support fewer species

• They reduce genetic diversity

• They provide uniform environments

How is species diversity different from biodiversity?

• It only considers the number of species

• It is the same as ecosystem diversity

• It includes the relative abundance of species

• It focuses on genetic variations

What is the simplest way to measure biodiversity?

• Measuring the abundance of a single species

• Counting the number of species

• Assessing the variety of ecosystems

• Counting the number of genes

Why is genetic diversity crucial for a species?

• It ensures a stable ecosystem

• It reduces the risk of extinction

• It helps in adapting to environmental changes

• It increases the number of species

How does genetic diversity affect a species' ability to evolve?

• It decreases the species' survival chances

• It provides more options for adaptation

• It limits the species' adaptability

• It has no effect on evolution

Which of the following is a practical reason for preserving biodiversity?

• To derive medicines from plants and animals

• To ensure a stable ecosystem

• To maintain genetic diversity

• To increase the number of species

What role do watersheds play in ecosystem services?

• They increase species richness

• They filter and manage water resources

• They provide habitats for endangered species

• They enhance genetic diversity

How can biodiversity contribute to agriculture?

• By reducing the number of crops

• By providing genetic traits for better crops

• By limiting the variety of livestock

• By increasing the need for pesticides

Why is it important to preserve both beautiful and less attractive species?

• Only beautiful species have ecological value

• Less attractive species are not important

• All species contribute to biodiversity

• Only less attractive species provide ecosystem services